فهرست مطالب homan minoonejad

This study compares the effect of postural restoration (PR) exercises with and without core stability exercises on the pain, intensity, function, quality of life (QoL), and passive range of motion (PROM) at lumbo pelvic-femoral complex in patients with non-specific chronic low back pain.

This was an interventional type of randomized clinical trial study. The participants were 45 female patients (48.1±6.11 years, 161.4±5.06 cm height, 65.08±6.9 kg weight, and 24.9±2.8 body mass index). They were randomly divided into three equal groups: Group 1=PR exercises and core exercises, group 2=PR exercises, and group 3=control group. Pain intensity, function, QoL, and PROM were measured with the visual analog scale, Oswestry disability index, short form-36 questionnaire, and goniometer. The analysis of covariance was used to compare the means in the study groups before and after the intervention. The intervention groups performed the exercises for six weeks.

The results showed a significant difference between the QoL, pain intensity, function, and PROM of left hip adduction in the group with PR exercises with and without core exercises and control (P=0.000). In the PR group with core exercises (P=0.001) and without core exercises (P=0.001), a significant increase was observed in the adduction of the left hip. There was no significant difference between the function (P=0.850), pain (P=0.120), QoL (P=0.328), and PROM (P=0.094) in the intervention groups.

PR exercises with and without core stability are equally effective in reducing pain and improving function, QoL, and hip adduction range of motion in women with left anterior interior chain patterns.

Nowadays, knowing the kinematic changes of lower limb joint angles in jump-landing tasks can provide useful information to prevent lower limb injuries in people with flat foot. Therefore, the aim of the present study was to investigate the kinematics of landing of athletes with flat and natural soles using landing error scoring system.

In the present study, 26 male athletes with flat foot and 26 male athletes with normal arch of the foot participated. The arch of the foot was measured by using the staheli index. Based on this index, values of 0.89> SI > 0.53 as normal foot and SI > 0.89 as flatfoot were evaluated and quantified. Kinematic data were recorded using motion capture cameras. The test used in the present study was landing error scoring system. Independent t-test was used to evaluate the mean difference in dependent variables between the two groups of healthy and flat-footed anomalies and Shapiro-Wilk test was used to evaluate the normality of the distribution of variables. All statistical tests were performed by SPSS software version 20 at 95% confidence interval with P value less than or equal to 0.05.

The results of the present study showed that there is a significant difference between the research groups in the jump-landing test (LESS) in that the flat-bottomed group showed higher scores (poorer performance) than the normal arch of the foot group(P> 0.05).

Based on the results of the jump-landing test (LESS), it can be concluded that changes in the position of the arch of the foot and therefore in the alignment of the body, probably affect the angles of the lower limb joints during daily activities and sports, which can change the pattern of damage.

Considering the important role of the scapula in the glenohumeral joint movements, its position on the thorax can affect the function of the joint. Therefore, the purpose of this study was to investigate the predictive relationship of the strength and glenohumeral rotation range of motion (ROM) with scapular dyskinesis (SD) in female athletes with overhead-throwing pattern. The present study was a descriptive-correlational research on 60 athletic female in volleyball, handball, basketball and badminton. The Lateral scapular slide test was used to examine SD. the dynamometer and goniometer were used to measure the strength and glenohumeral rotation ROM respectively. Data were analyzed using Spearman correlation and multiple regression tests. The correlation coefficients between SD and the glenohumeral internal rotation ROM (r=-0.734; p=0.000), the glenohumeral external rotation ROM (r=0.693; p=0.001), the glenohumeral internal rotation strength (r=0.674; p=0.005) and the glenohumeral external rotation strength (r=-0.719; p=0.001) were significant. Analysis of the research model showed that about one-third (30.1%) of total changes in SD were dependent on the independent variables mentioned in this regression model. therefore, screening of  athletes with overhead-throwing pattern must be taken into consideration in order to recognize SD, and participate in corrective exercises to increase the glenohumeral internal rotation ROM and the glenohumeral external rotator muscles strength.

The purpose of the present study was to investigate the effect of eight weeks of selected aquaticexercises on the amount of landing error in active men susceptible to anterior cruciate ligament injury. A total of 30 male students of Physical Education susceptible to injury were divided in to two groups of control (no= 15, with the average age of 20.11 ± 1.66 years, height: 178.34 ± 4.67 cm, and weight: 66.68 ± 7.69 kg) and experimental (no= 15, with the mean age of 21.63 ± 2.9 years, height: 179.38 ± 5.24 cm, and weight: 69.01 ± 6.75 kg). Prior to and after the exercise protocol, the LESS error rating system was used to evaluate the risk factors. Then, the experimental group performed the selected exercises in water for eight weeks. In order to analyze the data, paired and independent t-tests were used to examine the differences between and within groups. The results of statistical analyses showed that selected exercises in aquaticwould improve the landing error rate in male athletes susceptible to anterior cruciate ligament injury, while no significant changes were observed in the control group. The results showed that water practice improves the landing error rate. So, the use of selected exercises in water, along with other training methods, is recommended to improve the rate of landing error and reduce the amount of damage in people who are prone to damage to the anterior cruciate ligament.

  Disorders related to balance and falling are among the most important consequences of aging, which result in disturbing consequences such as bone fractures. The purpose of the present study was to determine the effect of TRX functional exercises on the balance of middle age men. In the current quasi-experimental study, 26 elderly men (mean age ± SD; 43.8 ± 3.44) were randomly divided into two groups of suspended exercises (n= 13) and control group (n= 13). The static, dynamic, and functional balance were evaluated using Sharp and Romberg, Corrected Star (Y), and Berg balance scales, respectively. The experimental group performed TRX exercises for 8 weeks, 3 sessions per week for 45 minutes. To analyze the data, t-test and ANCOVA statistical methods were used in SPSS, v. 2 with p-value set at ≤0.05. The results of t-test showed that the balance of the experimental group in all three groups was significantly different in post-test when compared with that in the pre-test (p≤0.05). In addition, the results of ANCOVA showed that performing TRX exercise significantly improved the balance in the experimental group as compared with the control group (p≤0.05). Since balance is a feature that is influenced by several factors, doing TRX exercises can well cover these capabilities and improve the balance of middle age men. Therefore, in order to prevent disorders related to balance and falling, it is recommended that these individuals take the benefits of functional TRX exercises during middle ages

This study aimed to compare the effect of 4 weeks of suspension exercises with TRX and hopping on the static and dynamic balance of male college athletes. This was a quasi-experimental study. In total, 36 male volleyball, basketball, soccer and handball players of the University of Tehran with an age range between 20 and 28 years were selected purposefully and then randomly assigned into 3 groups of control (n=12), TRX suspension exercise (n=12), and hopping exercise (n=12). The exercise groups performed hopping and TRX exercise 3 sessions a week for 4 weeks (12 sessions). Static and dynamic balance of the participants were measured before and after 4 weeks of suspension exercises with TRX and hopping using Biodex balance system. For data analysis paired t test, ANCOVA and Bonferroni test were performed in SPSS. P≤0.05 was considered as the significant level. The scores of the general indicator of the static and dynamic balance test in the 2 exercise groups showed significant improvements, compared to the control group (P≤0.05). However, there was no significant difference between the effect of hopping and TRX exercise on the static and dynamic balance of the athletes (P>0.05). Four weeks of hopping and TRX exercise significantly improves the static and dynamic balance of college athletes; Athletes and coaches can use both of these 2 sets of exercises for improving the static and dynamic balance and for prevention of injury

Since neck bears head’s weight, its abnormal position not only makes an inharmonious appearancebut also can cause musculoskeletal disorders. The aim of this study was to compare the craniovertebral (CV) angle of students based on their gender and field of study.
In this descriptive study, 1017 students (511 female and 506 male students) of Tehran Universities in different academic fields (Humanities, Basic Sciences, Engineering, and Medicine) were investigated. After recording age, weight and height of students, their CV angle was measured using Head Posture Spinal Curvature Instrument (HPSCI) and recorded in the data collection form. Based on the gender and field of study of students, CV angles were compared using two-way ANOVA and data were analyzed through SPSS18. Statistical significant level was considered at P=0.05.
Mean CV angle of female students was higher than that of males in all academic fields. The highest degree of CV angle was observed in the male engineering students (46.85°), and female medical students (48.65°) and the lowest was seen in the male basic sciences students (47.41°) and female humanities students (50.54°). According to the obtained results, CV angle has significant relationship with both gender and field of study (P=0.001).
Since no norm has been determined for the mean CV angle of the students at this age range, therefore, the degree of forward head posture of them cannot be definitely described. However, due to the growing tendency among studentsto pursue study, it is essential to inform themabout the correct body posture to prevent subsequent musculoskeletal disorders.

The purpose of this study was to investigate knee alignment and foot structure in futsal players with and without hamstring shortness.
In this descriptive - comparative study, 30 men athlete (18- 25 years) were recruited. They were assigned into two groups of 15 subjects with and without hamstring shortness. The hamstring shortness, knee and foot alignment were respectively measured by the goniometer, the ruler and caliper. After checking the normality of the data, (with Shapiro-Wilk test) independent samples t-test, were used to analyze of data at a significance level of P The findings indicate that there is a significant difference between the navicular drop in both groups, with and without hamstring shortness with the difference being lower in athletes with hamstring shortness (P= 0.002); but there is not any significant difference between the distances between Femur Condylar in both groups (P> 0.05).
It seems that, navicular drop is not common among athletes with hamstring shortness.

mal-alignment of lower extremity especially at the knee can lead to injury due to impact on muscle activity and proprioception. Therefore the aim of present study was the gender differences of some lower extremity muscle activation in subject with and without Genu Varum. subjects of present study was twenty four physically active students (group 1: six female with genu varum, group 2: six male with genu varum, group 3: six female without genu varum, group 4: six male without genu varum) of university of Tehran with the age ranged 18-22 years. For data collection, electromyography of gluteus medius, vastus medialis, rectus femoris and tensor fascia lata was performed and muscle activation was calculated. Significant between groups differences reported in activity of Gluteus Medius (P=0.001), Rectus Femus (P=0.002) and Vastus Medialis (P=0.001) but no significant differences noted in activity of Tensor Fascia Lata (P=0.756). The Bonferroni Post Hoc test results showed the significant differences in activity of Gluteus Medius (P=0.001), Rectus Femuri (P=0.003) and Vastus Medialis (P=0.003) of females and males with Genu Varum, also in activity of Vastus Medialis between females with and without Genu Varum Deformity (P=0.001).Discussion and Based on this study results, it’s concluded that the subject with Genu Varum deformity suffering from neuromuscular control deficit and this deficits in females with Genu Varum was more than males, thereby this persons are more prone to injury than males.