Isokinetic characteristics of hip muscles in amateur weight lifters / Hasnaa Hamdy Abdallah Salama ; Supervised Osama Ragaa Abdelraouf , Ahmed Salama Yamani , Abeer Farag Hanafy

Thesis (M.Sc.) - Cairo University - Faculty of Physical Therapy - Department of Biomechanics

Amateur weight lifting is one of the most popular activities among young adults. Yet, there is a deficiency in research concerning its effect on hip muscles{u2019} strength. The purpose of the study was to assess the concentric and eccentric normalized peak torque values of hip extensors, abductors and external rotators bilaterally in amateur weight lifters as compared to those of the non-lifters. Thirty male individuals (15 amateur weight lifters and 15 non lifters) with mean age of 21.76±2.58 years, weight 76.7±12.92 kg and height 1.73±0.074 m participated in this study. Data were collected using the Biodex Isokinetic system at an angular velocity of 120{u00BA}/sec. 2x2 mixed design MANOVA revealed that the concentric peak torque values of hip extensors and abductors of both sides increased significantly in the weight lifters compared to the non-lifters with no differences in-between for the external rotators (p < 0.05). Additionally, there were no statistically significant differences for the eccentric peak torque values of all tested muscles of both sides between the two groups (p > 0.05). Moreover, there were no significant differences between the dominant and non-dominant sides for both the concentric and eccentric peak torque values of all tested muscles in both groups (p > 0.05). Exercises for amateur weight lifters must be reviewed to include external rotators in their training programs. Additionally, eccentric training for hip muscles must be involved to prevent future injuries

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