Miyatake Nobuyuki, Saito Takeshi, Miyachi Motohiko, Tabata Izumi, Numata Takeyuki
Okayama Southern Institute of Health, Okayama Health Foundation, Okayama 700-0952, Japan.
Acta Med Okayama. 2009 Jun;63(3):151-5. doi: 10.18926/AMO/31851.
The aim of this study was to explore muscle strength and its relation to exercise habits in Japanese. We used data from 3,018 men and 6,881 women aged 20-69 years and not using medications in a cross-sectional study. Exercise habits and muscle strength, i.e. grip strength and leg strength, were measured. Age-related changes in muscle strength were noted. Exercise habits were found in 984 men (32.6%) and 1,664 women (24.2%). For subjects of both sexes over 50 years, grip strength was significantly decreased with age. However, the ratio of leg strength to body weight significantly decreased with age as early as 30 years in men and 40 years in women. Grip strength, leg strength and the ratio of leg strength to body weight in subjects with exercise habits were significantly higher than those without exercise habits after adjusting for age in both sexes. This standard mean value may provide a useful database for evaluating muscle strength in Japanese adult subjects.
本研究旨在探讨日本人的肌肉力量及其与运动习惯的关系。我们在一项横断面研究中使用了来自3018名20至69岁未使用药物的男性和6881名女性的数据。测量了运动习惯和肌肉力量，即握力和腿部力量。记录了肌肉力量随年龄的变化。在984名男性（32.6%）和1664名女性（24.2%）中发现有运动习惯。对于50岁以上的男女受试者，握力随年龄显著下降。然而，早在男性30岁、女性40岁时，腿部力量与体重的比值就随年龄显著下降。在对男女年龄进行调整后，有运动习惯的受试者的握力、腿部力量以及腿部力量与体重的比值均显著高于无运动习惯的受试者。这个标准均值可能为评估日本成年受试者的肌肉力量提供一个有用的数据库。
