Resumen de The Development of Trunk Muscles inMale Wrestlers Assessed by Magnetic Resonance Imaging
Junjiro Kubo, Akemi Ohta, Hideyuki Takahashi
Kubo, J., A. Ohta, H. Takahashi, T. Kukidome, and K. Funato. The development of trunk muscles in male wrestlers assessed by magnetic resonance imaging. J. Strength Cond. Res. 21(4):1251-1254. 2007.-The purpose of this study was to compare the development of trunk musculature among Elite, Sub-elite, and Elite junior wrestlers. The performance level of these groups, ordered highest to lowest, is as follows: Elite (n = 20), Sub-elite (n = 25), and Elite junior (n = 39). A magnetic resonance imaging device was used to measure the cross-sectional area (CSA) of the trunk muscles. The whole trunk muscle cross-sectional area (t-MCSA) of the Elite group was significantly larger than that of the Elite junior group (p < 0.05). The rectus abdominis muscle CSA of the Elite group was significantly larger than that of the Elite junior group (p < 0.01). The psoas major muscle CSA of the Elite group was significantly larger than that of the Elite junior group (p < 0.05). There were no significant differences in the CSA of any of the trunk muscles between the Elite and Sub-elite groups. In conclusion, compared with Elite junior wrestlers, it is conceivable that a greater CSA of trunk flexors of Elite wrestlers is one factor which supports increased performance.
