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Background and Objective: Alteration of scapular position and motion are called scapular dyskinesis (SD), that leads to symptoms such as pain in the shoulder joint. This study was performed to determine the effect of eight weeks scapular stabilization exercises on shoulder pain of archer men with scapular dyskinesis.
Methods: In this clinical trial study 30 archer men of recurve sport field with SD and shoulder pain were randomly divided into two intervention and control groups. Shoulder pain of all subjects was evaluated by using numeric pain rating scale. Then the interventional groups were received scapular stabilization exercises in three sessions per week for eight weeks. The control group performed only their normal daily exercises. At the end of the training, post-test was performed for both groups.
Results: The results of the present study showed that after scapular stabilization exercises, the reduction of dominant shoulder pain both during exercise and at rest was significant in interventional group in compared to controls (P<0.05). But in Non-dominant shoulder, there was significant effect in pain reduction only in intergroup (P<0.05) and there was no significant effect between interventional and control groups.
Conclusion: Scapular stabilization exercises can use to reduce the pain of dominant shoulder joint of archer sport men with scapular dyskinesis.

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Background and Objective: Genu recurvatum deformity shifts the mechanical axis of the lower extremity posteriorly, which may disturb balance and stability. The goal of this study was to compare the balance and core stability of female students with and without genu recurvatum.
Methods: This case-control study was conducted on 25 female students with genu recurvatum (mean age: 14.88±0.6 years) and 25 healthy counterparts (mean age: 15±0 years) in city of Salmas (Iran). The criterion for genu recurvatum was a 5-degree knee hyperextension. To measure static and dynamic balance, we used the stork balance stand test and Y test, and to measure core stability, we used the Sorensen, plank, side plank, and 60-degree sitting tests.
Results: The mean values of static balance of dominant (19.86±3.64) and non-dominant (17.16±4.67) leg of healthy students were significantly higher than that of students with genu recurvatum (14.44±2.03 and 10.53±1.66, respectively) (P<0.05). The median values of the dynamic balance of the dominant (32.04) and non-dominant (31.84) leg of healthy students were significantly higher than that of students with genu recurvatum (18.96 and 19.16, respectively) (P<0.05). The median values of central stability for the Sorensen (30.40), plank (30.58), lateral plank (31.04), and sitting (34.12) tests in healthy students were significantly better than the median values of central stability for the Sorensen (42.60), plank (20.20), lateral plank (19.96), and sitting (16.88) tests in students with genorcorvatum (P<0.05).
Conclusion: The balance and core stability of female students with genu recurvatum deformity is poor compared to their healthy counterparts.