مجله علوم پزشکی رازی
سال بیست و یکم شماره 2 (پیاپی 119، اردیبهشت 1393)

Among all shoulder injuries, shoulder impingement syndrome (SIS) is more common and is the most common cause for pain and stiffness in the shoulder area. The study purpose was to investigate the effect of six weeks resistance exercises with elastic-band on joint pain and range of motion (ROM) in athlete men with shoulder impingement syndrome.

This was a semi experimental research. The statistical population was athlete 20 to 30 year’s old men with SIS, referred to a counseling and health center.، Twenty students were selected as statistical samples and divided into two experimental (n = 10) and control (n = 10) groups. Then, one group had shoulder band workout for six weeks, and every week 3 sessions, and the control group only performed their daily activities. We used electro goniometer for measuring pre and posttest ROM and Visual Analog Scale (VAS) for pain assessment. The data was analyzed using independent samples t-test (p ≤ 0. 05).

In this study, a significant improvement was found in joint pain relief in the experimental group compared to pre-test and the control group. In addition, the experimental group compared with the control group showed a significant difference in ROM of the shoulder joint after six weeks of shoulder band workout in abduction, internal rotation and external rotation movements.

The result of this study showed that the resistance exercises with elastic-band are effective to joint pain relief and ROM improvement in athlete men SIS,

Delayed onset muscle soreness (DOMS) is a common experience after unusual activities (particularly eccentric exercises). The aim of the present study was to investigate the effect of short-term consumption of CoQ10 supplement on DOMS in athletic and nonathletic boys aged 15 to 17 years.

Twenty athletic and non-athletic boys who had no muscle soreness history in previous six months, voluntarily participated in this study and were assigned into two groups of 10 athletic and 10 non-athletic boys. Physical activity program for DOMS was 70 forearm eccentric contractions. Duration of every contraction was 3 seconds and between two contractions they rest for 10 seconds. Also, they had one minute rest between every 10 contractions. Dependent variables (LD H and CK) at baseline (before) and 48h after exercise soreness were measured. For data analysis ANOVA with repeated measure was used and p ≤ 0.05 was considered as significant.

Delayed soreness was investigated by measuring the biochemical changes of studied enzymes and self-report factors (i.e. muscle strength, fatigue, and stinging pain). Statistical analysis showed that there were no significant changes in LDH and CK levels of athletic and non-athletic groups (p ≤ 0.05). Both groups’ verbal representation showed that the short term consumption of CoQ10 yields reduction of muscle pain, stinging and fatigue.

Short term consumption of CoQ10 supplement reduces the levels of main markers of DOMS and muscle pain and fatigue, but this decrease was not significant.