به جمع مشترکان مگیران بپیوندید!

تنها با پرداخت 70 هزارتومان حق اشتراک سالانه به متن مقالات دسترسی داشته باشید و 100 مقاله را بدون هزینه دیگری دریافت کنید.

برای پرداخت حق اشتراک اگر عضو هستید وارد شوید در غیر این صورت حساب کاربری جدید ایجاد کنید

عضویت
فهرست مطالب نویسنده:

amir dana

  • امیر دانا، امیر شمس*
    ادبیات گسترده ای از تکانشگری به عنوان یک عامل خطر مهم در وقوع جرم حمایت می کند. جوانانی که تکانشگری بیشتری دارند، ممکن است رفتارهای خطرناکی از خود نشان دهند. در این مطالعه، تاثیر یک برنامه ی هشت هفته ای یوگا بر میزان تکانشگری و خطر پذیری مردان جوان مجرم بررسی شده است. 61 مرد جوان مجرم به طور تصادفی در دو گروه مداخله و کنترل قرار گرفتند. گروه مداخله به مدت هشت هفته در برنامه ی توانبخشی معمول به علاوه تمرین های یوگا و گروه کنترل فقط در برنامه ی توان بخشی معمول شرکت کردند. دو گروه در ابتدای مطالعه و همچنین پس از 10 هفته با استفاده از آزمون برو/نرو و تکلیف قمار IOWA مورد ارزیابی قرار گرفتند. دو گروه از نظر ویژگی های جمعیت شناختی تفاوت معنی داری نداشتند. آزمون ANOVA و آزمون تعقیبی توکی عملکرد بهتری را برای گروه مداخله در تمامی خرده مقیاس های آزمون های قمار برو/ نرو و IOWA در مراحل بعد از مداخله و قبل و بعد از مداخله نشان دادند. میانگین زمان واکنش در آزمون برو-نرو و میانگین زمان کل تکلیف قمار آیوا در گروه مداخله پس از مداخله به میزان قابل توجهی افزایش یافت. نتایج نشان داد برنامه ی مداخله ی یوگا می تواند برای کاهش تکانشگری و تصمیم گیری پرخطر در مردان جوان مجرم سودمند باشد.
    کلید واژگان: تکانشگری, تصمیم گیری پرخطر, یوگا, مردان مجرم
    Amir Dana, Amir Shams *
    Extensive literature supports impulsivity as an important risk factor in crime. On the other hand, more impulsive young adults are more likely to show risky behaviors. In this study, we examined the impact of an 8-week yoga program on the degree of impulsiveness and risk-taking in young male offenders. Sixty-one young male offenders were assigned to the control or intervention group. The intervention group attended in the usual rehabilitation program plus yoga exercises for 8 weeks and the control group attended in a routine rehabilitation program. The two groups were evaluated at the beginning of the study and also after 10 weeks, using the go/no-go test and the IOWA gambling task. The two groups did not differ significantly in terms of demographic characteristics. ANOVA and Tukey post hoc test showed better performance for the intervention group in all subscales of the go/no-go and IOWA gambling tests at the postintervention, and pre- and postintervention stages, respectively. The mean reaction time in the go/no-go test and the mean total time of the IOWA gambling task in the intervention group significantly increased after the intervention. Our study demonstrated that a yoga intervention program may be useful to reduce impulsivity and risky decision-making in young male offenders.
    Keywords: Impulsivity, Risky Decision Making, Yoga, Male Offenders
  • امیر دانا*، میرحمید صالحیان، سیما مکاری ساعی، زهرا چهارباغی

    هرچند تحقیقات قبلی به بررسی تاثیر نمای دیداری مشاهده مدل ویدئویی بر روی یادگیری مهارتهای حرکتی پرداخته اند، تاثیر نمای دیداری یک نمایش نقاط روشن در یادگیری مشاهده ای بررسی نشده است. هدف از تحقیق حاضر بررسی تاثیر مشاهده نمایش نقاط روشن از نماهای دیداری پشت و جلو بر روی یادگیری یک مهارت پرتاب بیسبال بود. شرکت کنندگان شامل 48 داوطلب مرد 18 تا 26 ساله بودند که به سه گروه نمای پشت، نمای جلو و کنترل تقسیم شدند. تکلیف حرکتی شامل پرتاب توپ بیسبال به سمت یک هدف بود. پروتکل تحقیق شامل پیش آزمون (شامل 5 پرتاب)، دوره اکتساب (شامل 5 بلوک 5 پرتابی) و آزمون یادداری (شامل 5 پرتاب) بود. در مرحله اکتساب، شرکت کنندگان گروه های مشاهده قبل از اجرای هر بلوک تمرینی به تعداد 5 بار نمایش نقاط روشن مربوط به گروه خود را مشاهده کردند. تمام پرتابها برای تحلیل سینماتیکی ضبط شدند. همچنین، نتایج پرتابها ثبت گردید. نتایج نشان داد که مشاهده مدل نقاط روشن بهتر از عدم مشاهده مدل در یادگیری الگوی حرکتی می باشد؛ اما بر روی نتیجه حرکت تاثیر متفاوتی ندارد. همچنین، مشاهده یک مشاهده مدل از نمای پشت منجر به یادگیری بهتر الگوی حرکتی نسبت به مشاهده آن از نمای جلو شد. این نتایج نشان می دهد که مشاهده کنندگان قادر به دریافت اطلاعات ضروری از نمایش نقاط روشن برای یادگیری یک مهارت حرکتی جدید هستند. همچنین، مشاهده مدل از نمای پشت نسبت به نمای جلو تاثیر بهتری بر روی یادگیری حرکتی دارد.

    کلید واژگان: نمای دیداری, نقاط روشن, الگوی حرکت, پرتاب بیسبال
    Amir Dana *, Mirhamid Salehian, Sima Mokari Saei, Zahra Chaharbaghi

    Although previous studies have examined the effects of visual perspective of a video model on learning of motor skills, the effects of visual perspective of a point-light model on observational learning has not been investigated. The purpose of the present study was to investigate the effects of observing a point-light model from the rear and front perspectives on learning a baseball pitch. The participants included 48 male volunteers aged 18-26, who were divided into three groups: rear perspective, front perspective and control. Motor task involved throwing a baseball toward a target. The protocol included a pre-test (including 5 throws), an acquisition phase (including 5 blocks of 5 throws) and a retention test (including 5 throws). In the acquisition phase, the participants of observation groups observed a point-light display corresponding to their group 5 times before performing each training block. All throws were recorded for kinematic analysis. Also, the results of the launches were recorded. The results showed that observing a point-light display is better than not observing the model in learning the movement pattern; but not in the movement outcome. Moreover, observing a model from the rear perspective led to better learning of the movement pattern than observing from the front view. These results suggest that observers are able to extract the necessary information from point-light display to learn a new motor skill. In addition, observing the model from the rear view has a better effect on motor learning than the front view.

    Keywords: Visual Perspective, Point-Light, Movement Pattern, Baseball Pitch
  • Farrokhlegha Najafzadeh *, Hassan Shafaei, Somayeh Alizadeh, Amir Dana
    Background
    Finding the factors that may affect performance of fine and gross motor skills in children with attention deficit hyperactivity disorder (ADHD) is of great importance. Therefore, the aim of this study was to examine the correlations between physical activity (PA) participation and anthropometric features with gross and fine motor skills in school children with ADHD.
    Methods
    This was a descriptive-correlational study. The study participants were 320 students with ADHD (including 120 girls; mean age of 7.86±0.89 years) from Tehran, Iran, in 2023. To assess PA, anthropometric features and motor proficiency, the Rapid Assessment of Physical Activity (RAPA) scale (scores range from 0 to 7), standard tools such as a meter and scale, and the short form of the Bruininks-Oseretsky Test of Motor Proficiency (scores from 0-53, and 0-51 for gross and fine skills, respectively) were used. The data were analyzed using independent t-test and Pearson correlation test.
    Results
    The participants had a relatively low level of PA (mean=2.23±1.07). Moreover, boys exhibited significantly higher proficiency in gross motor skills compared with girls (t=6.282, P<0.001), while girls demonstrated significantly higher proficiency in fine motor skills (P<0.001). Also, PA was directly and significantly associated with both gross (r=0.593, P<0.001) and fine motor skills (r=0.478, P<0.001). Moreover, body mass index showed an inverse and significant correlation with gross motor skill (r=-0.681, P<0.001).
    Conclusions
    These findings emphasized the importance of promoting more PA and height-to-weight matching processes for optimal motor growth in children with ADHD. Therefore, it is recommended to incorporate programs aimed at enhancing motor skills in children during physical education lessons.
    Keywords: Exercise, Motor Proficiency, Child, Attention Deficit Hyperactivity Disorder, Anthropometry
  • امیر دانا*، میرحمید صالحیان، ابوالفضل نشاطی، سیما مکاری ساعی
    مقدمه

    اجرای بهینه مهارت های حرکتی در حوزه پزشکی برای ارایه دهندگان خدمات سلامت ضروری است. بنابراین، شناسایی و درک مولفه ها و شرایطی که می توانند بر اجرای بهینه مهارتهای حرکتی پزشکی موثر باشند، مفید خواهد بود. هدف از این پژوهش بررسی تاثیر تمرکز توجه بیرونی و انتظارات افزوده شده بر روی یادگیری یک مهارت حرکتی در حوزه پزشکی بود.

    روش کار

    پژوهشجامعه پژوهش شامل 80 دانشجوی پزشکی در مرحله پیش بالینی بودند که به طور تصادفی به چهار گروه تمرکز توجه بیرونی، تمرکز توجه درونی، بازخورد مقایسه ای-اجتماعی، و کنترل تقسیم شدند. تکلیف حرکتی شامل بخیه زدن عمودی بود. پس از پیش آزمون، همه شرکت کنندگان پنج روز مهارت بخیه زدن را تمرین کردند، که در طی آن از گروه تمرکز توجه بیرونی خواسته شد که در حین اجرای مهارت بر روی سوزن و محل پارگی و از گروه تمرکز توجه درونی خواسته شد که برروی انگشتان و دست خود تمرکز کنند. گروه بازخورد مقایسه ای-اجتماعی در پایان هر روز تمرینی بازخورد مثبت دریافت کردند. آزمون یادداری یک هفته پس از مرحله اکتساب اجرا شد.

    یافته ها

    نتایج نشان داد که گروه تمرکز توجه بیرونی و گروه بازخورد مقایسه ای-اجتماعی بهترین عملکرد را نسبت به سایر گروه ها در مرحله اکتساب و آزمون یادداری داشتندبعلاوه، بازخورد مقایسه ای-اجتماعی باعث بهبود سطح خودکارآمدی شد.

    نتیجه گیری: 

    یافته های پژوهش حاضر از نظریه اپتیمال حمایت می کند و نشان می دهد که مولفه های تمرکز توجه بیرونی و انتظارات افزوده شده می توانند در بهینه سازی عملکرد و یادگیری مهارتهای حرکتی در حوزه پزشکی موثر باشند.

    کلید واژگان: بخیه, نظریه اپتیمال, آموزش پزشکی, انگیزش, یادگیری حرکتی
    Amir Dana *, MirHamid Salehian, Abolfazl Neshati, Sima Mokari Saei
    Purpose

    The purpose of this study was to investigate the effects of enhanced expectancies and external focus of attention on learning a medical motor skill.

    Method

    Participants included 80 medical students in the preclinical phase and were randomly divided into four groups: external focus, internal focus, social-comparative feedback, and control group. The motor task included vertical suturing. After the pretest, all participants practiced suturing for five days. During the training phase, the external focus group was told to focus at the rupture site on the mannequin while performing the skill, while the internal focus group was told to focus on the fingers. The social-comparative feedback group received positive feedback at the end of each day and were told that they performed better than the previous day. The control group did not receive any feedback or instructions. The retention test was performed one week after the acquisition stage. Suturing quality, self-efficacy, and focus of attention were measured as dependent variables. 

    Findings

    The findings of the present study supported the optimal theory and showed the components of external focus of attention and enhanced expectancies can be effective in optimizing performance and learning motor skills in the field of medicine.

    Conclusion

    The results showed that the external attention focus group had the best performance compared to the other groups in the acquisition phase and retention test;   and also, the social-comparative feedback group performed better than the control group. In addition, social-comparative feedback improved the level of self-efficacy. Finally, the instruction for external focus of attention led participants to focus on the goal of the motor task while performing the skill.

    Keywords: Suturing, OPTIMAL theory, medical education, Motivation, Motor learning
  • Ali Khanzad, Sheida Ranjbari, Amir Dana *, Shaghayegh Hashemi Motlagh
    Background

    The relationship between mindfulness and the repercussions of obesity, particularly in girls, has received limited attention. Consequently, the current research aimed to explore the correlation between mindfulness and social anxiety, depression, self-efficacy, and physical activity (PA) participation in obese teenage girls.

    Methods

    The research was a descriptive-correlational study conducted from October 2022 to May 2023 in Tehran, Iran. The statistical population for this study comprised obese teenage girls aged 13 to 15 attending their first secondary school. The study sample consisted of 384 obese teenage girls selected through convenience sampling. Standard instruments were employed to assess mindfulness, social anxiety, depression, self-efficacy, and PA participation. Data analysis was performed using the Pearson correlation test and ANOVA, facilitated by SPSS version 26.

    Results

    The results indicated that, on average, participants engaged in 13.01±3.02 minutes of moderate-to-vigorous physical activity (MVPA) daily. Furthermore, teenage girls exhibited relatively high levels of social anxiety (mean=39.79±8.85) and depression (mean=9.55±2.67). Moreover, there were significant correlations between mindfulness and reduced levels of social anxiety and depression (both P<0.001). Finally, significant associations were observed between mindfulness, higher self-efficacy, and increased PA (P<0.001).

    Conclusions

    These findings suggested a link between mindfulness and reducing the adverse consequences of obesity in teenage girls. In this regard, reinforcing mindfulness practices can prove an effective way for reducing anxiety and depression. Such practices may encompass meditation, mindful breathing, mindful observation, attention to the surrounding environment, heightened awareness, and mindful listening.

    Keywords: Obesity, Mindfulness, Exercise, Mental health, Adolescent
  • Shaghayegh Hashemi Motlagh *, Zahra Alam, Amir Dana, Sima Mokari Saei
    Background

    While the beneficial effects of PA on the mental and physical well-being of elderly individuals are recognized, there has been little focus on its effects on older adults with mild cognitive impairment (MCI). Therefore, the objective of this investigation was to examine the correlations between physical activity (PA) and depression, perceived health, physical function, and quality of life (QoL) among older women with Mild Cognitive Impairment (MCI).

    Methods

    This study employed a descriptive-correlation design. The statistical population comprised women with MCI (scoring 21 to 24 on the Mini–Mental State Examination) over 65 years residing in nursing homes in Tehran, Iran in 2023. The sample of this study consisted of 334 women (mean age=69.12±3.68) with MCI who were selected using a purposive sampling method. Standard tools were utilized for measuring PA, depression, balance, muscle strength, and QoL, respectively. Perceived health status was assessed using one item. Pearson correlation test and independent t-test were employed for data analysis.

    Results

    The results showed that 66% of the entire sample suffered from depression. The participants engaged, on average, in 14.69 minutes of moderate physical activity (MPA) per day. Only 22% of the participants met the WHO’s guidelines of 30 minutes of MPA daily. It was found that higher MPA was significantly correlated with lower depression (P<0.001) and higher perceived health, physical function (both balance and muscle strength), and QoL (all P<0.001). On the other hand, higher sedentary time was significantly correlated with higher depression (P<0.001) and lower perceived health, physical function (both balance and muscle strength), and QoL (all P<0.001).

    Conclusions

    The results suggested that strategies to improve health-oriented PA status in the elderly with MCI are necessary. In this regard, it is especially recommended that nurses plan recreational physical and sports activities for the elderly in groups or individually so that they can enjoy the benefits of PA.

    Keywords: Aging, Cognitive dysfunction, Exercise, Mental health, Quality of life
  • حدیث محمدی، امیر دانا*
    هدف

    هدف پژوهش حاضر مقایسه سرسختی ذهنی، ثابت قدمی و تفاوت های انگیزشی در بین ورزشکاران انفرادی و تیمی بود.

    روش ها

    پژوهش حاضر با توجه به هدف از نوع مطالعات کاربردی و از لحاظ ماهیت موضوع از نوع مطالعات توصیفی پس رویدادی با طرح علی-مقایسه ای است. جامعه آماری تحقیق شامل کلیه ورزشکاران شهرستان گرگان در رشته های انفرادی و تیمی بودند. نمونه های پژوهش به طور در دسترس و به روش مرحله ای انتخاب شدند. نمونه پژوهش 116 نفر شامل 57 نفر ورزشکار تیمی و 59 نفر ورزشکار انفرادی تشکیل دادند که با روش نمونه گیری در دسترس و مرحله ای انتخاب شدند. برای جمع آوری داده ها از پرسشنامه های انگیزش ورزشی پللیتر، سرسختی ذهنی شیرد و ثابت قدمی داکورث استفاده شد. تجزیه وتحلیل داده ها از طریق تحلیل واریانس یک طرفه صورت گرفت.

    نتایج

    نتایج نشان داد که ورزشکاران رشته های انفرادی نسبت به ورزشکاران تیمی ازلحاظ ثابت قدمی در سطح پایینی قرار دارند. میزان سرسختی ذهنی و مولفه های اطمینان، ثبات و کنترل ورزشکاران انفرادی نسبت به ورزشکاران تیمی در سطح پایین تری قرار دارد. همچنین میزان انگیزش و مولفه های انگیزه درونی، تنظیم آمیخته و تنظیم خودپذیر ورزشکاران انفرادی نسبت به ورزشکاران تیمی کمتر است.

    نتیجه گیری

    بنابراین می توان نتیجه گرفت که ورزشکاران رشته های انفرادی نسبت به ورزشکاران رشته های تیمی از لحاظ ثابت قدمی، سرسختی ذهنی و تفاوت های انگیزشی در سطح پایین تری قرار دارند.

    کلید واژگان: سرسختی ذهنی, ثابت قدمی, انگیزش, ورزشکاران تیمی, ورزشکاران انفرادی
    Hadis Mohammadi, Amir Dana *
    Aim

    The purpose of the present study was to compare the mental Toughness, grit and motivational differences among individual and team athletes.

    Method

    The present study is a descriptive post-event study with a causal-comparative design according to the purpose of the applied studies and in terms of the nature of the subject. The statistical population of the study included all athletes in Gorgan in individual and team disciplines. Research samples were accessible and selected by stepwise method. The research sample consisted of 116 people including 57 team athletes and 59 individual athletes who were selected by available sampling method and stage. Platter’s sports motivation questionnaire, abortive mental toughness and Duckworth steadfastness questionnaire were used to collect data.

    Results

    Data analysis was performed by one-way analysis of variance. The results showed that individual athletes are steadfast than athletes in the lower level. Subjective hardiness and components of assurance, stability and control of individual athletes are lower than team athletes. Also, the amount of motivation and components of internal motivation, mixing regulation and self-regulating individual athletes are less than team athletes.

    Conclusion

    Therefore, it can be concluded that individual athletes are steadfast, mentally stiff and motivational differences are lower than team-mates athletes.

    Keywords: Mental Toughness, grit, motivation, Individual athletes, Team athletes
  • رضا نیکبخش*، امیر دانا، مهدی عمادی
    تحقیق حاضر با هدف عوامل موثر بر بهبود الگوسازی و ایجاد نمادهای فرهنگی در ورزش همگانی طراحی و اجرا گردید. پژوهش حاضر از لحاظ هدف کاربردی، از نظر شیوه گردآوری داده ها توصیفی- پیمایشی بود که بر اساس رویکرد تحقیق، آمیخته بود. جامعه ی آماری بخش کیفی این پژوهش را نخبگان و صاحب نظران حوزه مدیریت آگاه به موضوع تحقیق تشکیل دادند و در بخش کمی؛ نیز جامعه آماری شامل متخصصان امر بود. ابزار تحقیق حاضر شامل پرسشنامه و مصاحبه های نیمه ساختارمند بود. جهت بررسی داده های بخش کیفی از کدگذاری استفاده گردید و در بخش کمی از روش معادلات ساختاری استفاده گردید. کلیه روند تجزیه و تحلیل داده های تحقیق حاضر در نرم افزارهای اس پی اس اس نسخه 20 و اسمارت پی ال اس نسخه 2 انجام گردید. نتایج تحقیق حاضر نشان داد که فعالیت های فرهنگی، مسایل آموزشی، فعالیت های اجتماعی، مسایل نظارتی، مسایل ماهیتی، مسایل اخلاقی و نمادسازی به عنوان مولفه های کلیدی در جهت بهبود الگوسازی فرهنگی در ورزش همگانی مشخص گردد. نتایج تحقیق حاضر نشان داد که در میان عوامل شناسایی شده، عوامل فرهنگی، عوامل آموزشی و عوامل اجتماعی به عنوان عوامل کلیدی در جهت بهبود الگوسازی فرهنگی در ورزش همگانی مشخص می باشد.
    کلید واژگان: الگوسازی فرهنگی, نمادسازی, ورزش همگانی
    Reza Nikbakhsh *, Amir Dana, Mehdi Emadi
    The aim of this study is to determine the effective factors on improving modeling and creating cultural symbols in public sports. Designed and implemented. In terms of applied purpose, the present study was a descriptive-survey in terms of data collection method, which was mixed based on the research approach. The statistical population of the qualitative part of this research consisted of elites and experts in the field of management aware of the subject of the research and in the quantitative part; The statistical population also included experts. The tools of the present study included questionnaires and semi-structured interviews. Coding was used to examine the data of the qualitative part and the structural equation method was used in the quantitative part. The whole process of data analysis was performed in SPSS software version 20 and Smart PLS version 2. The results of the present study showed that cultural activities, educational issues, social activities, regulatory issues, nature issues, ethical issues and symbolism should be identified as key components to improve cultural modeling in public sports. The results of the present study showed that among the identified factors, cultural factors, educational factors and social factors are identified as key factors to improve cultural modeling in public sports.
    Keywords: Cultural Modeling, symbolism, Public Sports
  • امیر دانا*، زهرا چهارباغی، کیوان ملانوروزی
    پژوهش حاضر با هدف بررسی نقش میانجی گری خودکارآمدی بر رابطه بین بهداشت روانی و اهمال کاری معلمان تربیت بدنی تدوین شده است. روش تحقیق توصیفی، مبتنی بر مدل معادلات ساختاری بوده است. جامعه آماری پژوهش شامل تمامی معلمان تربیت بدنی شهر گرگان بودند (175 نفر) که بر اساس روش نمونه گیری تمام شمار 161 نفر به به عنوان نمونه انتخاب شدند. برای گردآوری اطلاعات از پرسش نامه خودکارآمدی شرر (1982) (886/0=α)، سلامت روان (883/0=α) (1979) (GHQ)  و اهمال کاری (1991) (962/0=α) استفاده گردید. جهت تجزیه و تحلیل داده های تحقیق از آزمون همبستگی پیرسون و مدل سازی معادلات ساختاری در نرم افزار Amos استفاده شد. بر اساس یافته های پژوهش بهداشت روانی بر اهمال کاری (001/0=Sig، 378/4t=) و خودکارآمدی (001/0=Sig، 698/4t=-) اثر مثبت و خودکارآمدی بر اهمال کاری (001/0=Sig، 896/3-t=) دبیران تربیت بدنی شهر گرگان اثر منفی معناداری داشته است. همچنین، نتایج معادلات ساختاری نشان داد بهداشت روانی از طریق متغیر میانجی خودکارآمدی بر اهمال کاری دبیران تربیت بدنی شهر گرگان اثر مثبت معناداری دارد و مدل ارتباطی مرکب از متغیرهای تحقیق دارای برازش لازم است.
    کلید واژگان: خودکارآمدی, بهداشت روانی, اهمال کاری, دبیران تربیت بدنی
    Amir Dana *, Zahra Charbaghi, Keivan Molla Norozy
    The present study was conducted to investigate the mediating role of self-efficacy on the relationship between mental health and procrastination of physical education teachers. The research method was descriptive based on the structural equation model. The statistical population of the study included all physical education teachers in Gorgan (175 people), of which 161 teachers were selected. For data collection, the Scherer Self-Efficacy Questionnaire (1982) (α=0.886), Mental Health (GHQ) (1979) (α=0.823) and Procrastination (1991) (α=0.962) were used. Pearson’s correlation test and structural equation modeling in Amos software were used to analyze the research data. Based on the findings of mental health research on procrastination (Sig=0.001, t=4.378) and self-efficacy (Sig=0.001, t=-4.698), the positive effect of self-efficacy on procrastination (Sig=0.001, 896/3-t=) of physical education teachers of Gorgan city had a significant negative effect. In addition, the results of the structural equations showed that mental health through the mediating variable of self-efficacy had a significant positive effect on the procrastination of physical education teachers in Gorgan and the communication model consisting of research variables had the necessary fit.
    Keywords: self-efficacy, mental health, procrastination, Physical Education Teachers
  • Amir Dana *, Sheida Ranjbari, Zahra Chaharbaghi, Saeed Ghorbani
    Background
    Self-reported instruments have suggested that physical activity correlates with motor proficiency in children. However, due to inherent biases and low accuracy of self-reported instruments, this study aimed to investigate the relationship between objectively measured physical activity (via accelerometer) and motor proficiency in children.
    Methods
    This study is a descriptive-correlational investigation involving 384 children (comprising 192 boys and 192 girls), aged 7 to 9 years (with a mean age of 7.96±0.73 years). These participants were in the first and second grades from regular primary schools in Tehran, Iran, during 2022, and were selected through a convenience sampling method. We employed the ActiGraph wGT3X-BT accelerometer for an objective measurement of physical activity. The Bruininks-Oseretsky Test of Motor Proficiency’s short form was used to evaluate the children’s motor proficiency. Data were analyzed using Independent t-test, Pearson correlation test, and multiple linear regression analysis.
    Results
    The children did not meet the WHO guidelines recommending 60 minutes of moderate-to-vigorous physical activity (MVPA) per day. Boys had significantly more MVPA than girls (P<0.001). The results revealed that sedentary time had a significant inverse relationship with both gross (r=-0.681, P<0.001) and fine (r=-0.584, P<0.001) motor skills. Moreover, objectively measured physical activity (via accelerometer) showed a direct and significant correlation with gross motor skills (r=0.710, P<0.001), but not with fine motor skills (r=0.064, P=0.307). Sedentary time significantly and inversely impacted both gross (β=-0.68) and fine motor skills (β=-0.58). Furthermore, objective physical activity (measured by accelerometer) had a direct and significant impact on gross motor skills (β=0.71).
    Conclusions
    These findings underscore the necessity to enhance the level of physical activity in children, particularly in girls. We also recommend that physical education teachers and sports coaches incorporate programs in their physical education lessons designed to facilitate motor skills development in children.
    Keywords: Physical Activity, Motor proficiency, children, Accelerometer, Gender
  • امیر دانا*، وحید شجاعی، سعید قربانی
    هدف پژوهش حاضر تاثیر ثابت قدمی بر استحکام ذهنی و هوش هیجانی ورزشکاران نخبه بود. جامعه آماری تحقیق را تمامی ورزشکاران نخبه شهرستان گرگان دعوت شده به تیم ملی تشکیل می دادند. برای جمع آوری اطلاعات از پرسشنامه های ثابت قدمی داک ورث و همکاران (2007)، هوش هیجانی بار-آن (2002) و استحکام ذهنی شیرد و همکاران (2009) استفاده شد. داده ها با استفاده از آزمون همبستگی اسپیرمن و مدل معادلات ساختاری تجزیه و تحلیل شدند. نتایج نشان داد که ثابت قدمی بر استحکام ذهنی ورزشکاران اثر مثبت معناداری دارد (016/0=Sig، 206/2=t) اما تاثیر ثابت قدمی بر هوش هیجانی ورزشکاران معنادار نبوده است (261/0=Sig، 736/0=t). در نهایت بر اساس شاخص های (CFI، NFI، IFI) مدل تحقیق از برازش لازم برخوردار می باشد. بنابراین ثابت قدمی به عنوان یکی از فاکتورهای اثرگذار بر استحکام ذهنی به مربیان و ورزشکاران پیشنهاد می شود.
    کلید واژگان: ثابت قدمی, استحکام ذهنی, هوش هیجانی, ورزشکاران نخبه
    Amir Dana *, Vahid Shojaei, Saeed Ghorbani
    The purpose of the present study was to investigate the relationship of grit with mental toughness and emotional intelligence. The statistical population included elite athletes who were invited to the national team. Data collection was performed using the following questionnaires: i) grit questionnaire of Duck Worth et al. (2007), ii) emotional intelligence questionnaire of Bar-On's (2002), and iii) mental toughness questionnaire of Sheard et al. (2009) .According to Spearman correlation coefficient, there is a significant positive correlation between grit and mental toughness (Sig=0.001, t =0.322). The results showed that grit has a significant and positive effect on the mental toughness of athletes (Sig=0.016, t =2.206). Finally, based on (CFI, NFI, IFI) indices, the research model has the necessary fit. Therefore, the grit factor can be suggested to coaches and athletes as one of the factors influencing mental toughness.
    Keywords: Grit, Mental toughness, Emotional Intelligence, Elite athletes
  • ال آی جانعمو برنج آباد، امیر شمس*، امیر دانا
    هدف از پژوهش حاضر بررسی اعتباریابی و رواسازی نسخه فارسی پرسش نامه تمرین ذهنی ورزشی بود. روش پژوهش حاضر از نوع پژوهش های غیر تجربی و در زمره پژوهش های رواسازی ابزار می باشد که اطلاعات لازم و مورد نیاز آن به صورت مقطعی جمع آوری شد. جامعه آماری مطالعه حاضر را ورزشکاران شرق تهران تشکیل دادند. نمونه آماری پژوهش حاضر نیز شامل 400 نفر بودند که به روش نمونه گیری تصادفی انتخاب و پرسش نامه تمرین ذهنی ورزشی را تکمیل نمودند. این پرسش نامه شامل 20 سوال، دو بعد اصلی (مهارت های ذهنی و تکنیک های ذهنی) و 5 خرده مقیاس شامل مهارت های پایه، مهارت های عملکردی، مهارت های بین فردی، خودگفتاری و تمرین ذهنی تشکیل شده است. جهت بررسی روایی سازه عاملی از تحلیل عاملی تاییدی مبتنی بر مدل معادلات ساختاری، برای تعیین همسانی درونی از ضریب آلفای کرونباخ و برای پایایی زمانی (با فاصله دو هفته) از ضریب همبستگی درون طبقه ای استفاده شد. نتایج نشان دهنده برازش مطلوب نسخه فارسی پرسش نامه تمرین ذهنی ورزشی است. همچنین همسانی درونی و ثبات زمانی از مقادیر قابل قبولی برخوردار بودند. بنابراین، نسخه فارسی پرسش نامه تمرین ذهنی ورزشی دارای روایی و اعتبار قابل قبولی در ورزشکاران است و روان شناسان و پژوهشگران می توانند از این پرسش نامه استفاده کنند.
    کلید واژگان: روان سنجی, پرسش نامه تمرین ذهنی ورزشی, ورزشکاران, روایی, پایایی
    Elay Janamoo Berenjabad, Amir Shams *, Amir Dana
    Purpose
    The aim of this study was to investigate the validation of the Persian version of the Sports Mental Exercise Questionnaire.
    Methods
    The method of this study is a non-experimental research and is one of the instruments of validation research in which the required information was collected cross-sectionally. The statistical population consisted of athletes from East Tehran. The sample also included 400 people who were randomly selected and completed a sports mental exercise questionnaire. The questionnaire consists of 20 questions, two main dimensions (mental skills and mental techniques) and 5 subscales including basic skills, functional skills, interpersonal skills, self-talk and mental training. To assess the validity of the factor constructs, a confirmatory factor analysis was conducted on the basis of structural equation modeling. The Cronbach's alpha coefficient was used to determine internal consistency and the intraclass correlation coefficient was used to determine temporal reliability (at two-week intervals).
     
    Results
    The results show a good fit of the Persian version of the Mental Exercise Questionnaire. Internal consistency and temporal stability were also acceptable.
    Conclusion
    Thus, the Persian version of Sports Mental Exercise Questionnaire has acceptable validity among athletes and psychologists and researchers can use this questionnaire.
    Keywords: Psychometrics, Sports Mental Exercise Questionnaire, athletes, validity, Reliability
  • سعید قربانی، علیرضا رحیمی، امیر دانا، اکرم اصفهانی نیا
    زمینه و هدف

    امروزه مساله آموزش در سازمانها از اهمیت خاصی برخوردار است.سازمان فراجا نیز از این قاعده مستثنی نیست و به دنبال توسعه آموزشهای مورد نیاز است. هدف از پژوهش حاضر فرایند شکل گیری توسعه آموزش تربیت بدنی در فراجا با رویکرد مدل سازی ساختاری تفسیری ISM است.

    روش

    روش پژوهش از نوع کیفی مبتنی بر تکنیک تحلیل نرم و با رویکرد مدل سازی ساختاری تفسیری ISM هست. جامعه و نمونه آماری تحقیق شامل 15 نفر از خبرگان ورزش فراجا و اعضای هییت علمی دانشگاه که به صورت نمونه گیری هدفمند انتخاب شدند. ابزار جمع آوری اطلاعات  ماتریس 2*2 است. در این مطالعه، ابتدا مولفه ها بر اساس مصاحبه با خبرگان که دانش و تخصص لازم در مورد مسیله تربیت بدنی فراجا را داشتند شناسایی و از نظرات شان برای ساخت و روایی مدل از طریق پرسش نامه مقایسه زوجی استفاده شد. در تحقیق حاضر جهت تحلیل داده ها از روش ISM استفاده گردیده است.

    یافته ها:

    یافته های تحقیق با استفاده از ماتریس های خودتعاملی ساختاری و ماتریس های دستیابی اولیه و ثانویه نشان داد عامل بودجه و مالی در خوشه مستقل قرار گرفت بدین معنا که این متغیرها از میزان نفوذ بالا و اهمیت پایینی برخوردار هستند. همچنین متغیرهای امکانات و تجهیزات، عوامل انسانی و عوامل مدیریتی در خوشه پیوند قرار گرفتند. این متغیرها از میزان نفوذ بالا و میزان وابستگی بالایی برخوردار هستند.

    نتیجه گیری:

    متغیرهای کلیدی یا اثرگذار در توسعه آموزش تربیت بدنی فراجا چهار شاخص بودجه و مالی، امکانات و تجهیزات، عوامل انسانی و عوامل مدیریت می باشند. بنابراین شناسایی این متغیرها به عنوان متغیرهای کلیدی فرایند توسعه آموزش تربیت بدنی فراجا برای نهادها و متولیان امر کمک می کند تا برای توسعه و بهبود در اولویت قرار گیرند.

    کلید واژگان: فرایند, توسعه, آموزش تربیت بدنی, فراجا, مدل سازی ساختاری تفسیری
    saeed ghorbani, alireza rahimi, amir dana, akram esfahani nia
    Background and purpose

    Today, the issue of training in organizations is of particular importance. Faraja organization is no exception to this rule and seeks to develop the required training. The purpose of the current research is the formation process of the development of physical education in Faraja with the interpretive structural modeling approach of ISM.

    Method

    The research method is qualitative based on soft analysis technique and ISM interpretive structural modeling approach. The population and the statistical sample of the research include 15 people from Naja sports experts and university faculty members who were selected by purposive sampling. The data collection tool is a 2x2 matrix. First, the components were identified based on interviews with 15 experts. Then, their opinions were used to build and validate the model through a paired comparison questionnaire. In this research, the ISM method was used to analyze the data.

    Findings

    The budget and financial factor was placed in the independent cluster, which means that these variables have high influence and low importance.. These variables have a high degree of penetration and a high degree of dependence. In this regard, it can be said that the key or influential variables in the development of physical education are the four budget and financial indicators, facilities and equipment, human factors and management factors.

    Conclusion

    . Identifying these variables as key variables in the development process of Faraja physical education helps the institutions and the trustees to be prioritized for development and improvement.

    Keywords: process, development, physical education, interpretive modeling
  • علی محمد صفانیا، رضا نیک بخش*، امیر دانا
    پژوهش حاضر با هدف تجربه زیستی آثار روان شناختی دوپینگ سیاسی در فوتبال حرفه ای ایران طراحی و اجرا گردید. روش پژوهش حاضر از آمیخته نوع همبستگی بود. روش کیفی مورد استفاده در پژوهش حاضر از نوع پدیدارشناسی بود. پدیدارشناسی به بررسی تجربیات واقعی افراد می پردازد و اعتقاد براین است که در این تجربیات جوهره هایی وجود دارند که قابل فهم و بررسی هستند. مشارکت کنندگان در پژوهش حاضر شامل بازیکنان فوتبال حرفه ای بودند که در لیگ برتر فوتبال ایران فعالیت داشتند و تجربه دوپینگ سیاسی در ورزش دریافت کرده اند. ابزار گردآوری اطلاعات در پژوهش حاضر مصاحبه نیمه ساختاریافته بود. طی این پژوهش سه مضمون اصلی و 16 مضمون فرعی استخراج گردید. با توجه به نتایج پژوهش حاضر آثار روان شناختی دوپینگ سیاسی در فوتبال حرفه ای ایران در سه بخش شامل آثار رفتاری، آثار روانی و آثار اجتماعی مشخص گردید.
    کلید واژگان: دوپینگ سیاسی, روان شناختی, رفتاری
    Ali Mohammad Safania, Reza Nikbakhsh *, Amir Dana
    The present study was designed and conducted with the aim of biological experience of the psychological effects of political doping in Iranian professional football. The method of the present study was a correlation type. The qualitative method used in the present study was phenomenological. Phenomenology studies the actual experiences of individuals, and it is believed that there are substances in these experiences that can be understood and studied. Participants in the present study included professional football players who were active in the Iranian Football Premier League and received political doping experience in sports. The data collection tool in the present study was a semi-structured interview. During this research, 3 main themes and 16 sub-themes were extracted. According to the results of the present study, the psychological effects of political doping in Iranian professional football were identified in three sections, including behavioral effects, psychological effects and social effects.
    Keywords: Political, psychological, behavioral doping
  • رباب صحاف، مهدی رصافیانی، پروانه شمسی پور دهکردی، امیر شمس، امیر دانا*
    هدف

    هدف تحقیق حاضر مقایسه تاثیر خواب و بیداری بر تثبیت مبتنی بر ارتقاء حافظه پنهان حرکتی جوانان، میانسالان و سالمندان بود.

    مواد و روش ها

    نمونه آماری را 120 داوطلب (جوان، میانسال و سالمند) سالم و راست دست (40 نفر از هر گروه) شهر تهران تشکیل دادند. گروه ها به صورت در دسترس انتخاب و به طور تصادفی در شش گروه آزمایشی حافظه حرکتی پنهان جوانان، میانسالان و سالمندان با فاصله دوازده ساعت صبح (بدون خواب شبانه) و عصر (با خواب شبانه) تقسیم شدند. پژوهش شامل مراحل پیش آزمون، اکتساب و یادداری بود. تکلیف زمان عکس العمل زنجیره ای متناوب با ارایه توالی های تکراری و تصادفی به صورت یک در میان، در تحقیق حاضر مورد استفاده قرار گرفت.

    یافته ها

    یافته های تحلیل واریانس با اندازه های تکراری در مرحله اکتساب نشان داد تمرین باعث افزایش میانگین تفاوت زمان عکس العمل توالی تصادفی و تکراری در ایپوک پنجم شده بود. در مرحله یادداری اثر اصلی ایپوک تمرینی و اثر تعاملی گروه در ایپوک تمرینی معنی دار بود (05/0P<) و هر شش گروه در ایپوک آزمون یادداری عملکرد بهتری نسبت به ایپوک پنجم در مرحله اکتساب داشتند. نتایج آزمون تعقیبی دانکن نشان داد گروه های جوان، میانسال و سالمند با فاصله آزمون یادداری 12 ساعت، عملکرد بهتری در زمان عکس العمل نسبت به جلسه تمرین داشتند.

    نتیجه گیری

    به طور کلی خواب شبانه با اجرای آزمون یادداری 12ساعت بعد از جلسه اکتساب مهارت، فرایند تحکیم مبتنی بر ارتقاء حافظه پنهان حرکتی را به ترتیب در گروه های جوان، میانسال و سالمند تسهیل می کند.

    کلید واژگان: میانسالان, زمان واکنش زنجیره ای متناوب, حافظه حرکتی
    Robab Sahaf, Mehdi Rassafiani, Paravane Shamsipour Dehkordi, Amir Shams, Amir Dana*
    Introduction

    The purpose of this research was to compare the effect of sleep and consciousness on consolidation based on implicit motor memory enhancement among youth, middle-aged and elderly.

    Materials and Methods

    The sample statistic consisted of 120 (youth, middle-aged and elderly) healthy and right-handed volunteers (40 people from each age group). The groups were availability selected and randomly divided into six experimental groups of implicit motor memory of youth, middle-aged, and elderly with a distance of twelve hours in the morning (without night sleep) and evening (with night sleep). This research included the acquisition and retention phases. In this research, the alternative serial reaction time task with random and repetitive sequences was used.

    Results

    In the acquisition phase, the results of ANOVA with repeated measure test showed that the practice led to enhance mean of performance in random and repetitive reaction time in 5-epoch. In the retention phase, the main effect of the practice epoch was significant (P<0.05) and all six groups were better than the 5-epoch in the acquisition phase. Also, the results of the Duncan posthoc test showed that the youth, middle-aged and elderly groups with 12h retention test delay, were better performance than the practice session.

    Conclusion

    Generally, night sleep with 12h retention test facilities the process of consolidation based on implicit motor memory enhancement among youth, middle-aged and elderly people.

    Keywords: Middle-aged people, Alternative Serial Reaction Time, Motor Memory
  • Tayebeh Baniasadi, Sheida Ranjbari, Sedigheh Khajehaflaton, Abolfazl Neshati, Amir Dana *
    Background

    Although the impact of physical activity on controlling or reducing obesity has been well documented, the components that can affect this relationship have not been well defined. Hence, the current study aimed at examining the relationship between physical activity and adiposity in children with a consideration of self-esteem and body-image as mediators.

    Methods

    This study followed a descriptive-correlational design. In Total, 384 children (average age of 7.67 ± 0.82 years) from Gorgan, Iran, in 2022 participated in this study. Physical Activity Behavior in Leisure-Time Scale, Rosenberg Self-Esteem Scale, and Multidimensional Body-Self Relations Questionnaire–Appearance Scales were used for assessing Physical activity, self-esteem, and body-image, respectively. BMI was calculated for assessing adiposity. Structural equation modeling was implemented for analyzing the collected data.

    Results

    Our sample had relatively low levels of physical activity and boys had higher levels of physical activity than girls (3.48 vs. 2.04 days/weeks, respectively, t=5.79, P<0.001). Physical activity had inversely affected BMI (T=-7.769). Moreover, Physical activity positively affected self-esteem (T=6.967) and body-image (T=4.740). Finally, self-esteem and body-image significantly mediated the association between physical activity and BMI (P<0.001).

    Conclusion

    Overall, self-esteem and body-image can be considered as psychological predictors of obesity. In addition, physical activity and obesity are critical concerns about children. Accordingly, it is necessary to adopt appropriate strategies for enhancing active lifestyle among this population.

    Keywords: Body-image, Children, Obesity, Physical activity, Self-esteem
  • Tayebeh Baniasadi, Sheida Ranjbari, Ali Abedini, Amir Dana *, Saeed Ghorbani
    Background
    Internet addiction is nowadays believed to be the most prevalent harm that currently affects families, especially teenagers and young adults. In the current research, we aimed to further delve into it by examining the association of Internet addiction with mental health and physical activity in teenage girls, considering the mediating role of parental attitude toward Internet use.
    Methods
    Herein, 459 girls attending state schools of Tehran, Iran in 2022 were recruited utilizing convenience sampling method. The mean age of these girls was 12.21±1.28 years old. Standard instruments were used for assessing physical activity, mental health, and parental attitude toward Internet use. Pearson correlation test and structural equation modelling were also utilized for data analysis.
    Results
    The present study revealed that on average, teenage girls had low levels of physical activity (1.97±1.54). In addition, they were found to use a relatively high amount of the Internet (2.18±1.76). Moreover, Internet addition was significantly and directly associated with mental health (depression, T=5.769; anxiety, T=3.332; stress, T=4.529). This issue was also significantly and indirectly associated with physical activity (T=-6.482). Finally, parental attitude had a significant mediating role in the association of Internet addition with mental health and physical activity (both P<0.001).
    Conclusions
    Our results indicated that parents should receive some necessary training on the use of the Internet at home both for themselves and their children so that they can better control over the development process of their children.
    Keywords: Internet addiction, Mental health, Physical Activity, Parental attitude, Teenage girls
  • امیر دانا*، فرشته گل زاده، شیدا رنجری، کاملیا عبدی

    پژوهش حاضر با هدف رابطه بین مسیولیت پذیری اجتماعی و رفتارهای حفاظت از محیط زیست با نقش میانجی سرمایه فرهنگی در دانشجویان ورزشکار شهر تهران تدوین گردید. روش پژوهش از نوع مطالعات توصیفی-همبستگی مبتنی بر معادلات ساختاری بود. جامعه آماری تحقیق را کلیه دانشجویان ورزشکار تشکیل دادند که با توجه به حجم جامعه نامحدود و بر اساس جدول مورگان تعداد 364 نفر بر اساس روش نمونه گیری تصادفی خوشه ای چندمرحله ای به عنوان نمونه انتخاب شدند. جهت جمع آوری اطلاعات از پرسشنامه های مسیولیت اجتماعی کارول (1991)، سرمایه فرهنگی بوردیو (1986) و رفتارهای حفاظت از محیط زیست کایزر (1999) استفاده شد. پایایی پرسشنامه ها بر اساس ضریب آلفای کرونباخ به ترتیب برابر با 912/0، 854/0 و 832/0 بدست آمد. تجزیه و تحلیل داده ها از طریق آژمون پیرسون و معادلات ساختاری با نرم افزار AMOS صورت گرفت. با توجه به نتایج آزمون همبستگی پیرسون بین مسیولیت پذیری اجتماعی و سرمایه فرهنگی (001/0=Sig، 532/0=r)، بین مسیولیت پذیری اجتماعی و رفتارهای حفاظت از محیط زیست (001/0=Sig، 665/0=r) و بین سرمایه فرهنگی و رفتارهای حفاظت از محیط زیست (001/0=Sig، 714/0=r) رابطه مثبت معناداری وجود دارد. همچنین نتایج معادلات ساختاری نشان داد مسیولیت پذیری اجتماعی از طریق متغیر میانجی سرمایه فرهنگی بر رفتارهای حفاظت از محیط زیست دانشجویان ورزشکار اثر مثبت معناداری دارد.

    کلید واژگان: رفتارهای حفاظت از محیط زیست, دانشجویان, ورزشکار
    Amir Dana*, Fereshteh Golzadeh, Sheida Ranjbari, Kamelia Abdi

    The aim of this study was to investigate the relationship between social responsibility and environmental protection behaviors with the mediating role of cultural capital in athletic students in Tehran. The research method was descriptive-correlational studies based on structural equations. The statistical population of the study consisted of all student-athletes who were selected as a sample based on the size of the unlimited population and based on Morgan table, 364 people based on multi-stage cluster random sampling method. Carroll (1991), Bourdieu (1986) and Kaiser (1999) Environmental Behavior Questionnaires were used to collect data. The reliability of the questionnaires based on Cronbach's alpha coefficient was 0.912, 0.854 and 0.832, respectively. Data were analyzed by Pearson's test and structural equations using AMOS software. According to the results of Pearson correlation test between social responsibility and cultural capital (Sig: 0.001, r: 0.532), between social responsibility and environmental protection behaviors (Sig: 0.001, r: 0.665) and There is a significant positive relationship between cultural capital and environmental protection behaviors (Sig: 0.001, r:0.714). Also, the results of structural equations showed that social responsibility through the mediating variable of cultural capital has a significant positive effect on environmental protection behaviors of student students.

    Keywords: Environmental protection behaviors, students, athletes
  • Amir Dana *, Kamelia Abdi, Mirhamid Salehian, Sima Mokari Saei
    Background

    The effects of the coronavirus outbreak on the psychological and physical wellbeing of teenage girls is not well understood. Herein, one of the important mental health-related variables is introduced to be psychosocial distress (PSD). The current research aimed to explore the status of PSD in teenage girls during the coronavirus outbreak considering the impact of physical activity (PA) and sedentary time (ST).

    Methods

    This research utilized a descriptive-correlation method. We selected 384 teenage girls (mean age 16.93±0.72 years) in Iran, in 2020, using a convenience sampling procedure. The participants were healthy and without any physical or mental disabilities. They completed the standard questionnaires including the COVID-19-Related Psychological Distress Scale, Physical Activity Behavior in Leisure-Time Scale, and Adolescent Sedentary Activity Questionnaire. Spearman correlation test and structural equation modelling were utilized for data analysis.

    Results

    Our findings revealed that the psychosocial status of adolescent girls during the coronavirus outbreak was 41.50 out of 70. The subjects who were more physically active had lower levels of PSD (r=-0.627, P<0.001, whereas those with higher ST reported higher scores in PSD status (r=0.481, P<0.001).

    Conclusions

    The results of the current research demonstrate that PSD and PA are significant challenges threatening the health of teenage girls during the coronavirus outbreak. Accordingly, it is essential to adopt appropriate procedures to enhance PA and reduce ST of teenage girls.

    Keywords: Psychosocial distress, Physical Activity, Sedentary, coronavirus, Girls
  • امیر دانا*، زین العابدین فلاح، صالح رفیعی

    هدف پژوهش بررسی تاثیر ثابت قدمی بر خودکارآمدی تمرینی و کارایی مشارکتی ورزشکاران نخبه بود.جامعه آماری پژوهش شامل کلیه ورزشکاران شهرستان گرگان دعوت شده به تیم های ملی بودند (286نفر). نمونه آماری برابر جامعه آماری بود، که درنهایت تعداد 228 پرسشنامه جمع آوری گردید. برای جمع آوری اطلاعات از پرسشنامه های کارایی مشارکتی فلتز و لیرج (1998)، خودکارآمدی تمرینی بندورا (1997) و ثابت قدمی داک ورث و همکاران (2007) استفاده شد.داده های با استفاده از آزمون همبستگی پیرسون و مدل معادلات ساختاری تحلیل شدند.نتایج نشان دادثابت قدمی بر کارایی مشارکتی و ثابت قدمی بر خودکارآمدی تمرینی ورزشکاران تاثیر مثبت معناداری دارد. بر اساس ضرایب رگرسیونی استانداره شده مشاهده شد که ضریب تاثیر ثابت قدمی بر کارایی مشارکتی 0/406 و خودکارآمدی تمرینی 0/483 بود.همچنین ثابت قدمی از طریق متغیر میانجی کارایی مشارکتی بر خودکارآمدی تمرینی ورزشکاران اثر مثبت معناداری دارد.لذا توجه به عامل ثابت قدمی به عنوان یکی از شاخص های موفقیت و بهبود وضعیت کارآمدی ورزشکاران از اهمیت زیادی برخوردار است.

    کلید واژگان: ثابت قدمی, خودکارآمدی تمرینی, کارایی مشارکتی, ورزشکاران
    Amir Dana*, Zynalabedin Fallah

    the purpose of the present the study was to investigate the effect of grit steps on exercise self-efficacy and participatory performance in elite athletes.The statistical sample was equal to the statistical population that finally, 228 questionnaires were collected.To collect data,the following questionnaires were used: participatory performance (Felts and Lirg,1998), exercise self-efficacy (Bandura,1997) and grit steps (Duckworth,2007).The data were analyzed using the Pearson correlation test and the structural equation modeling method.The results showed that grit steps have a significant positive effect on participatory performance and exercise self-efficacy.Regard to the standardized regression coefficients, it was observed that the grit steps effect coefficients on participatory performance and exercise self-efficacy was 0.406 and 0.483,respectively.In addition,grit steps have a significant and positive effect on the exercise self-efficacy of athletes through the mediator variable of participatory performance.Therefore,considering the grit steps factor is very important as one of the indices in success and improving the athletic performance

    Keywords: Grit steps, Exercise Self-efficacy, Participatory Performance, Athletes
  • امیر دانا*، احمد صفرخان موذنی، جابر صفرخان موذنی
    زمینه و هدف

    ورزشکاران حرفه ای در طی بروز بحران ویروس کووید-19 دچار مشکلات عمده ای جهت تمرینات خود شده اند. هدف از انجام تحقیق حاضر تجربه زیستی آثار روان شناختی بیماری کووید-19 در ورزشکاران حرفه ای ایران بود.

    روش کار

    برای انجام این تحقیق که با روش کیفی پدیدارشناختی انجام شد، از بین ورزشکاران حرفه ای کشور در رشته های ورزشی انفرادی و با استفاده از روش نمونه گیری هدفمند 13 نفر به عنوان نمونه در بخش کیفی انتخاب شدند. سپس جهت جمع آوری داده ها از آن ها مصاحبه نیمه ساختاریافته انجام شد و کدگذاری به دو صورت اولیه و ثانویه انجام شد.

    یافته ها:

     مطابق با نتایج کدگذاری باز 24 کد باز به عنوان آثار روان شناختی بیماری کووید-19 در ورزشکاران حرفه ای ایران مشخص گردید. همچنین مشخص شد که آثار روان شناختی بیماری کووید-19 در ورزشکاران حرفه ای ایران شامل سه دسته شامل آثار ذهنی، رفتاری و اجتماعی می باشد.

    نتیجه گیری: 

    با توجه به نتایج تحقیق پیشنهاد می شود جهت بهبود عملکرد ورزشکاران به ویژگی های روان شناختی توجه شود.

    کلید واژگان: کووید-19, روانشناختی, تجربه زیستی, ورزشکاران حرفه ای
    Amir Dana*, Ahmad Safarkhan Moazeni, Jaber Safarkhan Moazeni
    Background & Aims

    Mental health plays a very important role in individual relationships and its importance is shown in how family relationships and social activities and other aspects of life (1). The study of psychological issues in sports has a long history and researchers in sports have always tried to find evidence in this regard (6). Among the psychological domains and dimensions, some variables play a more important role among athletes and overshadow their athletic performance (7). This is due to the important role of psychological issues in the performance of athletes. Another thing that seems to affect psychological characteristics is physical condition and illness. One of these diseases is COVID-19, which the World Health Organization announced in 2020 that this virus is similar to the Sars virus (this virus existed between 2002-2003 and left about 8000 cases of infection and 800 deaths). and MERS virus (this virus was reported in 2012, which caused about 2,500 infections and 800 deaths) (8). The widespread spread of this virus has caused major concerns worldwide (9). Another thing that seems to affect psychological characteristics is physical condition and illness. One of these diseases is COVID-19, which has caused disorders in people's lives due to economic, social, occupational and psychological problems (10). Meanwhile, professional athletes have also experienced major problems in their training during the COVID-19 virus crisis. This will undoubtedly have a negative effect on them mentally and will cause them to malfunction in the future. The uncertainty of the condition of some of the psychological effects of COVID-19 virus has led to the lack of evidence regarding the status of professional athletes in terms of psychological effects following the outbreak of COVID-19 virus. Therefore, the researcher is trying to answer the question: What are the psychological effects of COVID-19 disease in Iranian professional athletes?

    Methods

    To conduct this research, which was carried out with a phenomenological qualitative method, 13 professional athletes in individual sports in the country and using purposive sampling method, 13 people were selected as a sample in the qualitative section. Then, in order to collect data from them, semi-structured interviews were conducted and coding was done in both primary and secondary forms.

    Results

    After the interviews, the initial codes were identified that 24 codes in three dimensions of mental effects including codes (increased stress, reduced mental health, obsessive-compulsive disorder, increased anxiety, decreased attention, prevalence of depression, formation of mental fatigue, disorder) Fear, psychosis, creating negative emotions, frustration), behavioral effects including codes (creating obsessions, creating problems with sleep quality, decreased mood, insecure decision making, increased violence, decreased interpersonal emotions) and social effects including Codes (collectivism, low social skills, poor athletic performance, reduced capital, social distrust, extreme isolation and family conflicts). The significance coefficient of each code is given in Table 1. In general, the uncertainty and low predictability of this disease not only threatens people's physical health, but also affects people's mental health, especially in terms of emotions and cognition. Long-term negative emotions reduce people's immune function and destroy the balance of their normal physiological mechanisms. People may overreact to any illness, which leads to avoidance behaviors. Also, uncertainty about the future situation causes cognitive dissonance and insecurity, and when people feel the risk of illness, they behave in a conservative and cautious manner (18); However, this issue had not been carefully investigated among professional athletes, especially among professional athletes in Iran. On the other hand, one of the works that was seriously considered in the present research, and it seems that it was not seriously considered in other researches, is the social works. Social effects such as phobias, low social skills, low sports performance, reduction of social capital, social mistrust, severe isolation and family conflicts have been identified as one of the problems caused by the disease of COVID-19, which shows that It is important to pay attention to this issue among professional athletes. It seems that the fear and anxiety caused by the spread of the Covid-19 virus, along with the lack of a strong information and awareness system among professional athletes, have caused mental, behavioral and social problems in this regard.

    Conclusion

    The prevalence of COVID-19 virus as a key issue has been able to affect all aspects of human beings. Due to the spread of this virus, all people, including athletes, have been affected from different angles. From an individual perspective, athletes suffer from physical and mental problems that can cause long-term side effects. In other words, the general condition of the athletes showed that their anxiety condition is more acute than depression. Athletes' anxiety about the outbreak of the COVID-19 virus does not seem to be as good as other people in the community, and given that the virus has not been around the world for a long time, it can lead to depression. It is not in them (7). On the other hand, social effects such as phobia, low social skills, low athletic performance, reduced social capital, social distrust, extreme isolation and family conflicts have been identified as one of the problems caused by COVID-19 disease, which indicates It is important to pay attention to this issue among professional athletes. It seems that the fear and anxiety caused by the outbreak of COVID-19 virus, along with the lack of a strong information and awareness system among professional athletes, has caused mental, behavioral and social problems in this regard today. On the other hand, the epidemic of this virus and the lack of serious attention of clubs to control the negative effects of this virus has been able to create problems among athletes in the mental, behavioral and social fields.According to the findings of the research, it is suggested to group and screen the athletes based on their psychological status to recognize the different statuses of the athletes. Also, by creating a database regarding the various dimensions of the COVID-19 virus among athletes, he improved the sufficient information and knowledge regarding the COVID-19 virus and professional athletes; And by strengthening the athletes' immune system, he reduced the anxiety and stress of professional athletes in dealing with the COVID-19 virus. Finally, by holding training courses to improve mind management skills, he promoted the knowledge and skills of professional athletes in dealing with existing conditions.

    Keywords: COVID-19, Psychology, Biological experience, Professional athletes
  • پویا بیابانی، امیر دانا*
    هدف از تحقیق حاضر بررسی اثر خودگویی آموزشی و انگیزشی بر عملکرد پرتاب دارت با دشواری های متفاوت بود. تعداد 60 نفر از افراد مبتدی و راست دست با دامنه سنی 22 تا 28 سال به صورت دردسترس از دانشجویان دانشگاه آزاد تبریز انتخاب و به صورت تصادفی به سه گروه خودگویی آموزشی، انگیزشی و کنترل تقسیم شدند. گروه های مورد مطالعه براساس دستورالعمل خود 5 دسته 12 کوششی را انجام دادند. تمام پرتاب ها در در سطح دشواری کم در فاصله 80/1 متری، در سطح دشواری متوسط از فاصله 37/2 متری و در سطح دشواری زیاد در فاصله 87/2 از تخته دارت انجام شدند. شاخص اندازه گیری عملکرد براساس میزان خطای شعاعی (فاصله محل برخورد دارت از مرکز) مورد ارزیابی قرار گرفت. از روش آماری تحلیل واریانس ترکیبی 2 عاملی با اندازه گیری مکرر در عامل سطح دشواری برای آزمون فرضیه ها استفاده شد. نتایج نشان داد خودگویی آموزشی و انگیزشی منجر به بهبود معنی دار عملکرد پرتاب دارت شد. همچنین، اثر دشواری معنی دار بود، و در نهایت، اثر تعاملی خودگویی و دشواری بر عملکرد پرتاب دارت معنی دار بود. درنهایت، به نظر می رسد در تکالیف ساده، به دلیل ماهیت مهارت، خودگویی آموزشی با تکیه بر نشانه های مرتبط به خوبی منجر به بهبود مهارت شده است، اما در سطح دشواری متوسط به نظر می رسد، نقش خودگویی انگیزشی پررنگ تر می شود زیرا شرایط نیازمند تلاش بیشتری برای موفقیت است، و این موضوع با رابطه بین دشواری تکلیف و عملکرد همخوانی دارد.
    کلید واژگان: خودگویی, دانشجویان, تکالیف حرکتی, پرتاب دارت, دشواری
    Pouya Biabani, Amir Dana *
    The aim of the present study was to investigate the effect of educational and motivational self-talk on dart throwing performance with different difficulties. A total of 60 beginners and right-handers with an age range of 22 to 28 years were randomly selected and randomly divided into three groups of educational self-talk, motivation and control. The study groups performed 5 groups of 12 attempts according to their instructions. All throws were performed at low difficulty level at a distance of 1.80 m, at medium difficulty level at a distance of 2.37 m and at high difficulty level at a distance of 2.87 m from the dartboard. The performance measurement index was evaluated based on the amount of radial error (distance of the dart from the center). The statistical method of two factor analysis of variance analysis was used with repeated measurements in the difficulty level factor for testing hypotheses. The results showed that educational and motivational self-talk led to significant improvement in the dart throw performance. Also, the effect of difficulty was significant, and finally, the interactive effect of self-talk and difficulty on the performance of the dart throwing was significant. In simple tasks, due to the nature of the skill, educational self-talk based on related cues seems to improve the skill well, but at a moderate difficulty level, the role of motivational self-talk seems to become more prominent because the situation requires more effort for success, and this is consistent with the relationship between task difficulty and performance.
    Keywords: Self talk, students, Motor Tasks, dart throwing, Difficulty
  • Mohammadreza Seyedi, Fariba Mohammadi, Amir Dana*, Milad Esmaeili
    Background

    Sports psychology literature shows that motivation is essential in individual and team sports. This study compares sports motivation and Social Physique Anxiety (SPA)between blind and visually impaired elite athletes in individual and team sports.

    Methods

    The study is comparative in terms of design. The population was Iranian professional blind and visually impaired athletes in 2021. The sample includes N=110, n=35 in team sports (football and Goalball) and n=75 in individual sports (swimming, chess, wrestling, athletics), selected by convenience sampling method. The research tool was Sport Motivation Scale (SMS-18) and Social Physique Anxiety Scale (SPAS). Descriptive statistics (mean and standard deviation) and inferential statistics (independent t-test and analysis of variance) are used to analyze the data with SPSS 24.

    Results

    The results show a significant difference between the stimulating experience of athletes in individual and group sports in sports motivation components (P<0.05), and no significant difference is observed for other research variables (P>0.05). Also, the analysis of variance showed no significant difference between the elite athletes in individual and team sports in terms of sports motivation (P = 0.982) and SPA (P = 0.937).

    Conclusion

    It is suggested that the factors affecting the motivation of sports participation of blind athletes in other sports should be examined. We need to focus more on programs that reduce SPA in blind and visually impaired athletes.

    Keywords: Sports Motivation, Social Anxiety, Team, Individual Sports Athletes, The Blind
  • Mir Hamid Salehian, Amir Dana *, Abolfazl Neshati, Abdollah Hemayattalab, Sima Mokari Saei
    Background

    The style of teaching in physical education classes is very important for students’ participation in physical activity. However, the impact of teaching styles in online physical education classes during the COVID-19 pandemic is not well understood. The purpose of the current research was to investigate the associations between teaching style in online physical education with needs satisfaction, motivation, enjoyment, and intention to be physically active in adolescent students. Gender differences were also computed.

    Methods

    The current study applied a descriptive-correlation approach. The participants were 384 high-school students (192 boys and 192 girls) from Golestan province, Iran in 2020. Data was gathered using standard questionnaires. Correlation test and structural equation modeling were used to examine the associations among variables and Mann-Whitney U test was utilized to examine gender differences.

    Results

    Descriptive data demonstrated that boys and girls had almost identical age. Results demonstrated that perceived needs support was positively associated with psychological need satisfaction (T=12.169), motivation (T=4.467), enjoyment (T=7.257), and intention (T=4.657). Moreover, psychological need satisfaction was associated with motivation (T=7.019), enjoyment (T=5.607), and intention (T=4.230). Furthermore, motivation was associated with enjoyment (T=6.967) and intention (T=7.128). Finally, enjoyment was associated with intention to physical activity (T=15.130).

    Conclusion

    Perceived needs support is directly associated with motivating students to be physically active during online physical education.

    Keywords: Perceived needs support, Basic needs, Motivation, Physical Activity, COVID-19
  • Amir Dana *, Tayebeh Baniasadi, Mir Hamid Salehian, Sepideh Sarvari
    Background

    The optimizing performance through intrinsicmotivation and attention for learning (OPTIMAL) theory proposes that enhancing expectancies for future performance and supporting learners’ autonomy facilitate motor performance and learning. However, the effects of these factors on the performance of medical motor skills such as suturing have not been understood.

    Objectives

    This study aimed to investigate the effects of enhanced expectancies and autonomy support (AU) on motor performance, learning, and self-efficacy of a medical motor skill.

    Methods

    Participants were 63 right-handed medical students in the pre-clinical stage of their studies (years 1 and 2 of medical education). They were randomly assigned to 3 groups: (a) social-comparative feedback (SCF), (b) AU, and (c) control (CO) groups. A vertical mattress suture was chosen as a motor task. Following the pretest with 2 trials, all participants were exposed to a 5-day practice phase. The retention test was performed 1 week after the practice phase. During the practice phase, the SCF group received positive feedback at the end of the day. The AU group was given the option of choosing the color of silk sutures. The participants in the CO group practiced without any feedback or choosing the color of silk sutures. Suturing quality and self-efficacy were measured as dependent variables.

    Results

    Positive SCF led to a better suturing performance on the retention test; however, AU did not enhance motor learning of a suturing motor task. Moreover, positive SCF increased self-efficacy during the acquisition phase and on the retention test, while AU had no positive effects on self-efficacy.

    Conclusions

    The present findings support the OPTIMAL theory by demonstrating that enhanced expectancies in the form of positive SCF can facilitate learning medical motor skills (i.e., vertical mattress suturing).

    Keywords: OPTIMAL Theory, Medical Education, Motivation, Motor Learning
نمایش عناوین بیشتر...
بدانید!
  • در این صفحه نام مورد نظر در اسامی نویسندگان مقالات جستجو می‌شود. ممکن است نتایج شامل مطالب نویسندگان هم نام و حتی در رشته‌های مختلف باشد.
  • همه مقالات ترجمه فارسی یا انگلیسی ندارند پس ممکن است مقالاتی باشند که نام نویسنده مورد نظر شما به صورت معادل فارسی یا انگلیسی آن درج شده باشد. در صفحه جستجوی پیشرفته می‌توانید همزمان نام فارسی و انگلیسی نویسنده را درج نمایید.
  • در صورتی که می‌خواهید جستجو را با شرایط متفاوت تکرار کنید به صفحه جستجوی پیشرفته مطالب نشریات مراجعه کنید.
درخواست پشتیبانی - گزارش اشکال