Component characteristics of thigh muscle volume in young and older healthy men.
作者： Madoka Ogawa , Tomohiro Yasuda , Takashi Abe
DOI: 10.1111/J.1475-097X.2011.01057.X
关键词:
摘要: The purpose of this study was to compare the component characteristics thigh muscle volume in Japanese young and older men. subjects both (YM, n = 15) (OM, 13) men were physically active (performed aerobic-type exercise 1-3 times per week), but none had regularly participated resistance training for a minimum 3 years prior study. Contiguous transverse magnetic resonance imaging (1.5-T scanner) images obtained from thigh, total individual (quadriceps, hamstrings adductors) volumes calculated by multiplying cross-sectional area (CSA) slice thickness number slices. Muscle length average CSA (muscle divided length) determined each muscle. Maximum voluntary isometric (MVC) knee extension flexion strength measured, quality defined as MVC unit (MVC/CSA). Quadriceps were, respectively, 20% 16% lower (P < 0.05) OM than YM, while adductors similar groups. Knee YM. extensor MVC/CSA two groups, flexor Our results suggest that age-related loss is specific, greater quadriceps found group.
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