Article ID Journal Published Year Pages File Type
2705970 Physical Therapy in Sport 2011 4 Pages PDF
Abstract

ObjectiveTo compare lateral abdominal muscle thickness between weightlifters and matched controls.DesignA case control study design.SettingUniversity laboratory.Subjects16 female Thai national weightlifters and 16 matched controls participated in this study.Main outcome measuresUltrasound imaging with a 12-MHz linear array was used to measure the resting thickness of transversus abdominis (TrA), internal oblique (IO) and total thickness (Total) of lateral abdominal muscle (LAM) on the right side of abdominal wall. The absolute muscle thickness and the relative contribution of each muscle to the total thickness were determined.ResultsWeightlifters had significantly thicker absolute TrA and IO muscles than matched controls (p < 0.01). Further, the relative thickness of the IO was significantly greater in weightlifters than matched controls (p < 0.05).ConclusionsThe findings of this study suggest that routine Olympic style weight training among female weightlifters appears to result in preferential hypertrophy or adaptation of the IO muscle.

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