The Effects of core stability Exercise on the dynamic balance of volleyball players

Dynamic balance is a key component of injury prevention and rehabilitation in sports. Training the core muscles has been hypothesized as an intervention for improving balance. However, there is a lack of current scientific evidence to support this claim. The purpose of this study was to evaluate the effects of a core stability program on dynamic balance of volleyball players as measured with the Star Excursion Balance Test (SEBT). Thirty healthy participants were divided into 2 groups: control and exercise groups. All participants performed the SEBT before and after 8-week exercise time. During the 8-week time, the exercise group performed a core stability program, whereas the control group abstained from any new exercise. These results also illustrated there was significant differences in the scores for pre-test and post-test of all direction according SEBT in the experimental group. An independent sample t-test was conducted to compare experimental and control group (F= 43.573, Sig= 0.000). These results were a significant difference in the scores for control and experimental groups. Maximum excursion distances improved for the exercise group, compared with the control group. This result justifies the hypothesis that core strengthening can improve dynamic postural control during landing of volleyball players significantly

The comparison of loneliness in athlete and non-athlete women

The aim of the present study was to compare the loneliness in athlete and non-athlete women. The statistical population of the present study included all athlete and non-athlete women in Shiraz, Iran. The sample consisted of 764 subjects (382 athletes, 382 non- athletes) that the athletes sample selected by Gerjesy and Morgan’sample size table and non-athletes sample selected by purposeful sampling method. Loneliness scale (Dehshiri et al., 2008) was used for measuring the loneliness. Independent t-test and multivariate analysis of variance (MANOVA) tests were used for data analysis. The results showed a significant difference between athlete and non-athlete females in the loneliness and its subscales (p<0/05). According to this finding, loneliness in athletes is less than non-athlete women. Regarding the findings of this study, it can be argued that sport activities play a role in reducing the loneliness of women.This research conducted by financial support of Sports and Youth Organization of Fars Province in Iran which is hereby acknowledged

The Effect of Six Week Resistance Training on Muscle Regeneration in Tumor- Bearing BALB-C Mice

Background & Objective: Many cancer patients suffer from cachexia or cancer-induced muscle atrophy. Cachexia can have various causes one of which is the reduction of muscle regeneration. Resistance training has been suggested as one of the proper stimulator of increasing muscular regeneration. The present study aimed at evaluating the effect of resistance training on two factors of regeneration including PAX7 and eMHC, tumor-free weight and tumor weight of mice.  Materials & Methods: This study was a kind of experimental intervention. Subjects of the study included 10 BALB-C mice (age: 6 weeks) which CT-26  tumor was transplanted to them. Mice were divided into two groups of resistance training (n=5) and control (n=5) randomly. Training group performed six-week progressive resistance training and control groups were kept in cages without any exercise intervention. At the end of the experiment, gastrocnemius muscle was taken for evaluating related factors. Data were analyzed using the independent t-test. Results: There was no significant difference in PAX7 between two groups of training and control, but eMHC reduced significantly in training compared to the control group (P=0.038). Tumor-free bodyweight of training group increased significantly compared to the control group (P=0.0004) and there was no significant difference in tumor weight between two groups of training and control. Conclusion: Although resistance training does not increase tumor growth but probably reduce some muscle regeneration factors in cancer-bearing mice. So, for improving muscular regeneration in cachexia bearing patients, probably resistance training is not a good choice. However, more future researches are required

The Effect of Concurrent Aerobic and Anaerobic Exercise on Stress, Anxiety, Depressive Symptoms, and Blood Pressure in Renal Transplant Female Patients: A Randomized Control Trial

Background: Prevalence of stress, anxiety, depressive symptoms, and high blood pressure are known to be important issues among renal transplant patients. Objective: The main purpose of this study was to evaluate the effect of selected exercises on blood pressure, stress, anxiety, depressive symptoms, and blood pressure among renal transplant patients. Method: Thirty two women patients (aged, 20-50 years) with 2 to 3 years post renal transplantation history were voluntarily and objectively recruited. Participants were randomly divided into two groups, exercise (n=16) and control (n=16). The exercise group performed 10 weeks of exercise 3 days per week, and for 60-90 minutes per session. The control group involved no exercise. The DASS21 questionnaire was used to collect psychological data, and blood pressure was measured before and after 10 weeks of exercise. Data analysis was conducted using dependent and independent t-tests. Results: Concurrent exercise significantly reduced anxiety, stress, depressive symptoms, and systolic blood pressure in the exercise group only (p=0.000). Conclusion: Ten weeks of low-intensity exercise can be an effective measure to improve the stress, anxiety, depressive symptoms, and blood pressure in renal transplant patients. Our results suggest that a regular pattern of selected exercises can be effective on stress, anxiety, depressive symptoms, and blood pressure and may be beneficial for renal transplant patients. Keywords: Selected exercise, Stress, Anxiety, Depressive symptoms, Renal transplan