Association between the presence or absence of bow-legs and physical functions in community-dwelling elderly females

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  • 地域在住女性高齢者におけるＯ脚の有無と身体機能との関連
  • チイキ ザイジュウ ジョセイ コウレイシャ ニ オケル O キャク ノ ウム ト シンタイ キノウ ト ノ カンレン

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<p>The purpose of this study was to clarify factors that influence the presence or absence of bow-legs and investigate their associations with physical functions in community-dwelling elderly females. The subjects were １１４ community-dwelling elderly females. The presence or absence of bow-legs was evaluated, and physical functions, such as the physique, body composition, muscle strength, standing balance, and walking speed, were compared. We compared the values between 5３ females with a distance of ≥３０ mm between the medial epicondyles of the femur (bow-legs group) and 6１ with a distance of <２０ mm (non-bow-legs group). There were significant differences in the skeletal muscle volume, quadriceps femoris muscle strength, 30-sec Chair Stand test, duration of standing on one leg, maximum walking speed, and Timed Up & Go Test. In the bow-legs group, these results were poorer than in the non-bow-legs group. There were no significant differences in the age, Body Mass Index, percent body fat, grip strength, or normal walking speed. In addition, based on the results of logistic regression analysis, ２ items, that is, the skeletal muscle volume and quadriceps femoris muscle strength, were extracted as factors that influence the presence or absence of bow-legs. These results suggest that reductions in the skeletal muscle volume and quadriceps femoris muscle strength cause bow-legs in community-dwelling elderly females, bow-legs leading to a reduction in the standing balance or walking ability.</p>

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