ASSOCIATION BETWEEN SKELETAL MUSCLE MASS INDEX (SMI), SKIPPING MEAL(S), AND LACK OF PHYSICAL ACTIVITY AMONG FEMALE UNIVERSITY STUDENTS WHO DESIRE TO LOSE WEIGHT

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  • 減量希望のある女子大学生の骨格筋指数（SMI）と欠食および運動不足との関係
  • ゲンリョウ キボウ ノ アル ジョシ ダイガクセイ ノ コッカクキン シスウ(SMI)ト ケッショク オヨビ ウンドウ ブソク ト ノ カンケイ

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This study aimed to investigate the association between the skeletal muscle mass index (SMI), skipping meal(s), and lack of physical activity among female university students who desire to lose weight. The body composition of 74 female students who desire to lose weight were measured using the bioelectrical impedance analysis (BIA) method, and their ideal weight and eating and physical activity behaviors were noted through a questionnaire-based survey. The ideal weight (percentage difference between the current weight) was significantly correlated with body mass index or body fat (r = -0.64 or -0.58, P < 0.01), but not with SMI (r = -0.18). Insufficient physical activity was associated with higher body fat and lower SMI. Further, participants who skipped meal(s) and had insufficient physical activity had markedly lower SMI. These results suggest that an individual’s ideal weight is determined based on their current weight (not muscle mass). Therefore, if individuals who skipped meal(s) and had insufficient physical activity try to lose weight based on their current weight, their muscle mass might greatly decrease.

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