مقالات رزومه دکتر ناهید طالبی

Health literacy is recognized as one of the most important determinants of health for proper health decision making. On the other hand, Knowledge and attitude of people towards sports activities is an effective determinant in their decision to participate in health-oriented activities. The aim of this study was to investigate the relationship between health literacy and knowledge and attitude towards sports activities among high school adolescent girls.

The research method used was descriptive correlation. The statistical population of the study included all female high school students in Islamshahr, Tehran province. A sample of 341people was selected by multi-stage random sampling. The required data were collected using the Health Literacy Measure for Adolescents questionnaire and the Knowledge and Attitude Scale. Data were analyzed using Pearson correlation test and multivariate regression analysis.

The results showed that there was a significant positive relationship between knowledge and attitude toward sports activities and health literacy (P < 0.05). All components of health literacy have the power to predict the level of awareness and attitude.

According to the results of this study, health literacy can play an important role in encouraging adolescents to participate in sports activities by raising awareness and positive attitude in students.

Excitement is a complex and multidimensional event that leads to readiness for action. Emotional regulation as external and internal processes is responsible for monitoring, evaluating, and modifying emotional reactions, especially temporal and intensive characteristics to achieve the goal. Exercise is one of the most effective ways to regulate your emotions. The present study investigated the relationship between emotion regulation and the level of physical fitness related to the health of firefighters in Tehran.

This research is a correlational study, which was conducted cross-sectionally. The statistical population included all firefighters in the operational department of the Tehran Fire Department, from which 341 people with a mean age of 33 ± 7.5 years were selected using simple random sampling. To conduct this study, Cooper test to evaluate the performance of cardiorespiratory endurance, body composition by calculating body mass index, sit-up test to assess strength and endurance of abdominal muscles, flexibility test to assess flexibility of back and thigh muscles, the pull-up test to assess the strength and endurance of the shoulder girdle muscles and the emotion adjustment skills questionnaire to assess emotion regulation were used. Data were analyzed using Pearson correlation and multiple regression.

The results of correlation analysis showed that there is a positive relationship between health-related fitness factors (cardiorespiratory endurance, muscle strength, muscle endurance, flexibility) with emotion regulation, and body mass index component has a negative relationship with emotion regulation. The results of regression analysis showed that all physical fitness factors related to health have the power to predict the amount of emotion regulation.Discussion and

According to the findings of this study, there is a significant relationship between all components of physical fitness related to health and emotion management and having high physical fitness is effective in positive emotional regulation. The results of the research show the need to pay more attention to improving the physical health and physical fitness of firefighters to perform their duties more effectively.

Combined exercise is a suitable and varied activity to control weight and strengthen children's respiratory muscles. The aim of the present study was to investigate the effect of combined rope and basketball training on body composition and some indicators of pulmonary function of overweight boys aged 10-12 years.

This article was a quasi-experimental study with a pre test-post test design with a control group. For this purpose, 30 overweight male students were purposefully selected and randomly divided into two groups of 15 experimental and control. Respiratory parameters were measured by spirometry and body composition factors before and after exercise. Subjects participated in a training program for 6 weeks. Data analysis was performed using analysis ANCOVA and dependent t-test in SPSS-20 software.

Exercise intervention in the experimental group caused a significant reduction in weight, fat percentage and body mass index compared to the control group (p<0.05). Forced Vital Capacity and Forced Expiratory Volume in one-Second pulmonary function indices have had a significant increase (p<0.05).

Combined basketball and rope training exercises are effective in improving body composition and increasing the performance of overweight students' lung characteristics.

Health literacy increases peoplechr('39')s ability to prevent disease and improve the quality of self-care. The aim of this study was to determine the correlation between health literacy and health-related physical fitness level in overweight female secondary high school students. 

The present study is descriptive-correlation. The statistical population included all female secondary high school students studying in Islamshahr city in the academic year of 2009-2010, amounting to 5347 people. The research samples were selected by cluster random sampling method based on Cochranchr('39')s formula of 358 overweight students with body mass index between  25  and  30. Data were collected using demographic questionnaire, "Physical Activity Readiness Questionnaire" and "Health Literacy Measure for Adolescents". The validity and reliability of the instruments in the present study have not been measured and are limited to other studies. Health-related physical fitness includes: 540 m run (cardiorespiratory endurance), sit-up (abdominal muscle strength and endurance), flexibility (sit- and- reach), and Pull-up (shoulder girdle muscle strength and endurance) was evaluated. Data analysis was performed in SPSS. 21.

The correlation between health-related physical fitness (0.456) and health literacy (0.595) was significant and positive (P <0.001). Health-related physical fitness have the power to predict health literacy (P <0.001). 

Health-related physical fitness is positively correlated with studentschr('39') health literacy. It is suggested that special attention be paid to the complete and comprehensive program of sports and physical education in the school curriculum.

Recent research has shown that there is a relationship between exercise and pain threshold and exercise can change the pain threshold. Also, some researchers claim that there is a relationship between the type and intensity of exercise and pain relief. Therefore, this study aimed to compare the effects of aerobic and resistance training on inflammatory pain threshold changes in male rats.

In this experimental study, 25 healthy male rats weighing 200-300 g were selected and divided into two experimental groups (aerobic training and resistance training) and a control group. Pre-test and post-test of inflammatory pain threshold was measured by formalin test (pain measurement) and pain test due to stimulation of nerve terminals (tail flick) was performed on the groups. Then, the two experimental groups performed the exercise training program for 6 weeks. Data were analyzed using one- way ANOVA at (P <0.05).

There is a significant difference between the effects of the two training methods (P <0.05). The inflammatory pain threshold was increased in the aerobic group in the Tail-Flick test. But in formalin test, no significant difference was observed between the groups (P <0.05).

Based on the findings of this study, aerobic exercise is effective in increasing the pain threshold. The reducing effects of aerobic exercise on the production of inflammatory factors can be effective and lead to the inflammatory analgesic effect in the animal model. Therefore, further research in this area is recommended.

Fat deposition in the liver to the extent of more than 5% of the liver weight in the absence of significant alcohol consumption, viral infections and any etiology of liver disease is called non-alcoholic fatty liver. The aim of this study was to investigate the effect of combined exercises with the approach of "ultimate -fit" and coffee consumption on the levels of liver enzymes in middle-aged men with non-alcoholic fatty liver. The present study was quasi-experimental with pre-test and post-test design. 44 middle-aged men with fatty liver were purposefully selected and randomly divided into four groups: combined exercise (n=11), coffee consumption (n=11), combined exercise + coffee consumption (n=11) and control (n=11). Ultrasound and blood tests were performed to determine the amount of liver enzymes before and after the implementation of the research protocol. The practice groups performed the combined program for eight weeks in three regular sessions per week. Subjects in the coffee consumption group and combined exercise+coffee consumption received 10 grams of coffee every other day.  Data were analyzed by using analysis of MANCOVA. Serum levels of liver enzymes in all three experimental groups were significantly reduced compared to the control group (p < 0.05). In the experimental group, combined exercise with coffee consumption decreased alanine aminotransferase and in other cases no significant difference was observed. Combined exercise intervention with coffee consumption is effective in reducing liver enzymes. This intervention can be used for sedentary middle-aged people with fatty liver who are on the verge of aging.

Physical literacy refers to onechr('39')s capacity to adopt  a healthy and physically active lifestyle. The present study aimed to investigate the effect of a selected exercise program on physical literacy and body composition of overweight and obese elementary school girls.

This quasi-experimental study was conducted based on a pre-test-post-test design and a control group. A number of 30 elementary school girl students (age range of 7-12 years old) with overweight and obesity were selected by purposive sampling method. Thereafter, they were randomly assigned to two groups of experimental and control (n=15 in each group). The experimental group practiced selected sports activities in 12 60-minu sessions for 8 weeks. Before and after the intervention, the physical literacy questionnaire scale was completed by the subjects and the body composition status (height, weight, fat percentage, muscle mass percentage) was assessed. Data analysis was performed using analysis of covariance and dependent t-test.

The obtained results pointed to a significant increase in body literacy level and muscle mass percentage, as well as a significant decrease in total body weight, body mass index, and fat percentage of the subjects (P≤ 0.05).

As evidenced by the results of the present study, it can be concluded that the intervention of selected sports activities has been effective in the improvement of  physical literacy and body composition of students.

Introduction & Objective:

Resistance training plays an important role in increasing the physical performance of players in various sports. Accordingly, the aim of this study was to investigate and compare the effects of plyometric and traband resistance training on the physical performance of volleyball players.

This research was a quasi-experimental study with pre-test and post-test design and was conducted in a field method. Thirty young volleyball players of Shahid Bagheri Sports Complex in Tehran, ranging in age from 18 to 25 years old, were selected through purposive sampling and randomly divided into two groups of plyometric and traband resistance training. The training protocol was performed for 8 weeks, three sessions per week and 90 minute per session Subjects of both groups performed physical function tests including: vertical jump, smash jump, agility, displacement speed and functional test before and after the intervention. The collected data were analyzed using analysis of covariance at the significance level (P <0,05).

The results showed a statistically significant increase in physical performance indices including: vertical jump, spike jump, agility, displacement speed and combined functional test (ideal time, real time, ideal jump and real jump). There was no significant difference between the two groups in any of the above indicators. Only at the ideal time was a significant difference observed between the groups

The general conclusion is that both plyometric and traband resistance training exercises are effective in increasing the physical performance of volleyball players and can be used in combination with coaches and athletes.

Introduction and goal:

The purpose of this study was to compare two types of traditional resistance training and crossfit resistance training on Fat free mass index and fat mass index of overweight and obese women.

This semi-experimental study, with pre-test and post-test, included 30 women with overweight and obesity with a mean age of 27 ± 2 years who were divided into two groups by purposeful sampling.

  After analyzing the data and statistical tests of the research hypotheses, the results showed that the effect of the protocol of crossfit resistance training  versus the traditional resistance training protocol on the Fat free mass index of adult women with overweight and obese was not significant (P ≤ 0.31 ) The effect of the crossfit resistance training protocol on traditional resistace training protocols on fat mass index of overweight and obese women was significant (P ≤ 0.01).
Discussion and

According to the present study, it can be concluded that crossfit exercises have a significant difference in the reduction of fat mass index compared to traditional resistance exercises.

The present study investigates the effectiveness of aerobic training interventions and training coping skills to reduce stress among firefighting staff.

The study was a semi-experimental and pre-test-post-test with control group. Sixty individuals were selected from among the volunteer firefighting staff in Tehran. They were randomly assigned to two experimental groups (30) and control (30 people). The experimental group consisted of 36 sessions of 60 minutes (12 weeks and 3 days a week) in an increasing aerobic exercise program, and three 4-hour sessions at the stress coping training workshop, but the control group did not have such interventions. The data were analyzed before and after the intervention by health and safety stress (HSE) questionnaire and analyzed by ANCOVA test.

Aerobic exercise and stress coping training significantly reduce job stress in the experimental group at the level (error less than 5%) compared to the control group.

The study shows that aerobic exercise and stress coping training can reduce the stress of work and, as a result, reduce mental stress and enhance the performance of the fire department staff.

Introduction and goal: The purpose of this study was to compare two types of traditional resistance training and crossfit resistance training on Fat free mass index and fat mass index of overweight and obese women.

This semi-experimental study, with pre-test and post-test, included 30 women with overweight and obesity with a mean age of 27 ± 2 years who were divided into two groups by purposeful sampling.

  After analyzing the data and statistical tests of the research hypotheses, the results showed that the effect of the protocol of crossfit resistance training  versus the traditional resistance training protocol on the Fat free mass index of adult women with overweight and obese was not significant (P ≤ 0.31 ) The effect of the crossfit resistance training protocol on traditional resistace training protocols on fat mass index of overweight and obese women was significant (P ≤ 0.01).
Discussion and

According to the present study, it can be concluded that crossfit exercises have a significant difference in the reduction of fat mass index compared to traditional resistance exercises.

The present study examines the effectiveness of exercise training along with the program to increase the awareness and attitude of physical activity on the improvement of workability index of post company employees.    The study was a semi-experimental and pre-test-post-test with control group. To do this research, 60 post workers were employed and randomly divided into two groups of intervention (30 people) and control (30 people). Subjects were first evaluated using the workability index WAI Questionnaire. Then the intervention group participated in the exercise program for 16 weeks and weekly weekly in the exercise program along with the program to increase the awareness and attitude of physical activity, but the control group was not subjected to such intervention. The collected data were analyzed using ANCOVA test and SPSS20 software  The mean score of the questionnaire of the ability of the intervention group after the exercise training with the program for increasing the knowledge and attitude of physical activity increased significantly (P <0.05). Also, there was a significant difference between workability index scores in experimental and control groups.      The results of this study showed that the simultaneous exercise of two exercises with the program to increase the awareness and attitude of physical activity, in improving the workability of the staff is effective and increases the productivity and quality of the workability of the organizations.

The aim of the present study was to survey the effectiveness of selected of the sixth grade's health and physical education program according to Bloom's learning domains (cognitive, affective and psychomotor) in male students. In a semi experimental design, a total of 60 sixth-grade male students served as subject in this study. They randomly assigned to experimental (n=30) and control (n=30) groups and treated for 10 weeks, two session per week. In experimental group the physical fitness and health section of physical education and health program of sixth grade were executed according to teacher’s handbook in a theoretical and practical manner, the control group has been administered in classic pattern including warm up, running and group games. Effectiveness of the program in cognitive and affective domains evaluated using a researcher-made questioner. In psychomotor domain a combined exercise test and AAHPERD health related physical fitness test were used. The result of MANOVA showed there were significant difference between experimental and control group in cognitive and affective domains (p<0.05). Moreover, between groups comparison of various aspects of cognitive and affective domains, using t test, showed that except for perception (p=0.056) and applying (p=0.052) in cognitive domain, in all aspects scores of experimental group were significantly higher than the control group (p<0.05). Factor by factor comparison of different aspect of psychomotor domain (combined exercise test, 540 m run, flexibility, sit up, modified pull up, and body fat percentage), using t test, revealed that except for body fat percentage (p=0.378), experimental group had better physical performance than the control group (p<0.05).Finding of this study approve that in male students in comparison with classical pattern of physical education class, new health and physical education program of sixth grade may be more effective with regard to Bloom's learning domains.

The N-terminal proB-type natriuretic peptide (NT-proBNP) has been proposed as a marker for evaluating and monitoring cardiac abnormalities characterized by myocardial wall stress. Strenuous exercise may generate transitory ischemia, myocardial stress, and diastolic left ventricular dysfunction, resulting in increased production of NT-proBNP suggestive of incipient heart disease. The purpose of this research was to examine the response of NT-proBNP to a soccer game in adolescent male soccer players. In this quasi-exprimental research, 22 adolescent male soccer players (mean age 15.39±0.44 years, BMI 19.89±1.89 kg/m2) were selected in a purposive manner. Protocol was include a soccer game. NT-proBNP was assayed from blood samples collected at rest, immediately post- and at 2 hour and 24 hour post-exercise. The result showed that significantly increased the levels of serum NT-proBNP in immediately and 2 hour post soccer game in adolescent male soccer players, but not in level of serum NT-proBNP in 24 hour post exercise. finding of this study shows that NT-proBNP levels increase significantly in adolescent male soccer players after a soccer game, but this increase – although statistically significant - is clinically within the normal physiological range; moreover, the increase is temporary in nature and returns to normal resting level 24 hours after the game. Finally, it seems that in this age groupwith this level of fitness, soccer game doens not result in a dangerous rise in NT-proBNP levels and is cardiacly safe.

The aim of this study was to compare the effects of two methods of Iso-distance continuous and intermittent exercise training on appetite and body composition in overweight and obese sedentary girls. Twenty six overweight and obese girls who were resident of Shahed university dormitory were purposefully selected and randomly assigned into following Iso-distance groups: interval exercise training and continuous exercise training. Each Group performed their own protocol for 8 weeks, 3 times per week with specified intensity and distance. Before starting the protocol and 24 hours after the last training session, appetite, percentage of body fat, waist circumference, waist-to-hip ratio, body mass index, and maximum oxygen uptake were measured at same condition. Data were analyzed using Paired sample t test and analysis of covariance. The findings showed that neither interval and nor continuous exercise training protocol had a significant effect on appetite (p>0.05). Also, two exercise training protocol significantly reduced percentage of body fat (p=0.377), body mass index (p=0.372), waist-to-hip ratio (p=0.509) and waist circumference (p=0.242), but the difference between groups was not significant (p>0.05). It seems that eight weeks of continuous and interval exercise training had no stimulatory or suppressive effect on appetite. Also, when the protocols are Iso-distance interval and continuous exercising training had similar effect on body composition of overweight and obese sedentary girls.

The purpose of this study was to investigate the relationship between distributive justice and organizational commitment of sports Organization staff in Tehran Municipality sports. Participants include 260 staff employed in administrative department sports of Tehran Municipality’s sports. The samples were selected in a purely random approach. The research materials consist of two questionnaire, “Niehoff and Moorman” organizational justice questionnaire and “Allen and Meyer” organizational commitment questionnaire that their validity and reliability were confirmed. Kolomogrove-Smearonove test, Pearson and Spearman correlation tests and one sample t- test was used to analyze the data (α=0.05). Results showed that there is a significant relationship between distributive justice (the rate of considering justice for distributing sources and rewards) and organizational commitment. Generally, results indicate that there is more relationship between distributive justice and duty commitment and less in other variables. Organizational distributive justice was at very high undesirability level and organizational commitment (duty commitment, emotional commitment and continuous commitment) variables was assessed at average desirability level in the form of emotional and duty commitment and desirability border in the form of continuous commitment. These results indicate that managers and administrators should pay more attention to justice in order to increase organizational commitment and get high desirability level.

The purpose of this study was to determine the relationships between Coaching leadership behavior, group cohesion, and performance of Iranian women's prologue volleyball teams. In this correlational study, 76 female volleyball players (age 24.96±4.26 yrs, athletic experience 9.71±4.74 yrs, and membership experience in professional teams 6.55±3.73 yrs) from prologue teams in 2009 completed individual characteristics questionnaire, Leadership Scale in Sport (LSS; Chelladurai & Saleh, 1980), and Group Environment Questionnaire (GEQ; Carron et al., 1985). Data were analyzed using Pearson correlation coefficient and multivariate linear regression model at the 0.05 significant levels. Results showed that total level of group cohesion is significantly related to training and instruction, democratic behavior, autocratic behavior, social support, and positive feedback, and total level of leadership behavior (p≤0.05). Also, performance of women's prologue volleyball teams is significantly related to training and instruction, democratic behavior, autocratic behavior, social support, and positive feedback, total level of leadership behavior, task cohesion, social cohesion, and total level of group cohesion (p≤0.05). Results of regression analysis showed that democratic and autocratic behavior have significant contribution in prediction of task cohesion (56%), social cohesion (63%), and total level of group cohesion (73%), however, positive feedback also was significant predictor for social cohesion in women's prologue volleyball teams (p≤0.05). About team performance, regression analysis showed when the both of leadership behavior and group dimensions are entered together to the analysis, only leadership behavior included training and instruction, social support, and positive feedback can predict team performance (p≤0.05). Findings of this study confirm the importance of coaching leadership behavior in prediction of group cohesion and team performance.