男性高齢者における腸腰筋の形態学的分析

概要

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The purpose of this study was to do a morphological analysis of iliopsoas muscle (psoas major plus iliacus muscles) in the male aged. Cross-sectional areas (CSA) of psoas major and iliacus muscle were measured from T12 to lesser trochanter by magnetic resonance imaging, and muscle volume was calculated. Body weight, fat free mass (FFM), and skeletal muscle mass (SM) were measured by bioelectrical impedance method. Because a significant correlation was seen between muscle volume of iliopsoas and SM, muscle volume is normalized by SM and two groups have been extracted. High volume group (HVG) was composed of the one above mean+0.5SD in muscle volume of iliopsoas/SM. Low volume group (LVG) was composed of the one lesser than mean-0.5SD in muscle volume of iliopsoas/SM. When muscle volume were adjusted with SM, HVG showed significantly greater muscle volume in both psoas major and iliacus than LVG (P<0.05〜0.001). In comparison of CSA, HVG showed significantly greater CSA of psoas major in wide range (15 slices), and CSA of iliacus in narrow range (3 slices) than LVG. Muscle volume of psoas major has a strong influence on muscle volume of iliopsoas in male aged. When thinking about the maintenance of the muscle volume of the iliopsoas, it is necessary to consider the muscle volume of psoas major.
九州共立大学の論文