فهرست مطالب mohammad reza amirseifadini

The shoulder complex as one of the most moving joints of the body frequently was used by overhead sports athletes. Thus, musculoskeletal screening such as assessment of the range of motion (ROM), and strength variables can be useful to injury prevention strategies and further the development of conditioning and rehabilitation programs. The purpose of this study is to compare selected variables and the ratio of ROM and strength in volleyball, handball, and badminton players. A total of 36 athletes with similar physical characteristics (volleyball: age=26.65±4.56 y, weight=91.07±7.91 kg, height=185.14±12.25 cm; handball: age=27.29±3.12 y, weight=90.11±6.38 kg, height=183.52±9.67 cm, and badminton: age=26.01±4.29 y, weight=87.85±4.59 kg, height=182.38±10.74 cm) were selected to participate in the current study. A Leighton flex meter and hand-held dynamometer were used respectively to measure the ratio of ROM and strength.The results showed that the mean ratio of external(ER) strength to internal (IR) strength and ER ROM to IR ROM were significantly different between the three groups. The post hoc test revealed that badminton athletes had significant differences in all of the measured variables to both volleyball and handball athletes. But there were no differences between volleyball and handball athletes.In conclusion, preseason screening is vital in achieving optimal values on these measures and may reduce future shoulder injuries in overhead athletes.

Decreasing in physical activity, overweight and obesity are the main causes of increasing serum lipid profile. The interaction of these factors with each other and in response to exercise could be correlated with physiologic circadian functions. The aim of present study was to compare the effects of 8-weeks of general physical education course (1) at the morning and evening on aerobic capacity, body composition, blood lipids and lipoproteins among non-athlete students in Shahid Bahonar University of Kerman. 15 (evening group), 14 (morning group) and 15 (control group) subjects among non-athlete general physical education course (1) students were selected as volunteer sample. Fasting blood samples (12 to14 hours) were taken two times before and also after 8 weeks of intervention. The changes in serum lipids profile (TC, TG, lipoprotein HDL and LDL) were determined by enzymatic methods. The aerobic power and percent body fat were measured by Cooper test and skinfold technique respectively. The data was analyzed by a mixed two-way Split Plot ANOVA test (SPANOVA) and the significant level set as p≤0.05. The results indicated that 8 weeks of general physical education course (1) (one session in every week) had no significant effect on blood factors (TC, TG, HDL and LDL) and percent body fat (p>0.05). But, aerobic power of students regardless of time during the morning and evening were significantly increased (p<0.01). One session of general physical education course (1) would not be enough to improve student’s health, moreover there is no difference affect of performing these courses during the morning and the evening time.