Suwa Masataka, Imoto Takayuki, Kida Akira, Yokochi Takashi
Health Support Center WELPO, Toyota Motor Corporation, Japan; Faculty of Life Design, Tohoku Institute of Technology, Japan.
Health Support Center WELPO, Toyota Motor Corporation, Japan.
J Phys Ther Sci. 2016 May;28(5):1472-7. doi: 10.1589/jpts.28.1472. Epub 2016 May 31.
[Purpose] To compare the toe flexor, hand grip and knee extensor strengths of young and elderly men, and to examine the association between toe flexor strength and physical activity or inactivity levels. [Subjects and Methods] Young (n=155, 18-23 years) and elderly (n=60, 65-88 years) men participated in this study. Toe flexor, hand grip, and knee extensor strength were measured. Physical activity (time spent standing/walking per day) and inactivity (time spent sitting per day) were assessed using a self-administered questionnaire. [Results] Toe flexor, hand grip, and knee extensor strength of the elderly men were significantly lower than those of the young men. Standing/walking and sitting times of the elderly men were lower than those of the young men. Toe flexor strength correlated with hand grip and knee extensor strength in both groups. In elderly men, toe flexor strength correlated with standing/walking time. In comparison to the young men's mean values, toe flexor strength was significantly lower than knee extensor and hand grip strength in the elderly group. [Conclusion] The results suggest that age-related reduction in toe flexor strength is greater than those of hand grip and knee extensor strengths. An early loss of toe flexor strength is likely associated with reduced physical activity in elderly men.
[目的] 比较青年男性和老年男性的趾屈肌、握力和膝伸肌力量，并研究趾屈肌力量与身体活动或不活动水平之间的关联。[对象与方法] 青年男性（n = 155，18 - 23岁）和老年男性（n = 60，65 - 88岁）参与了本研究。测量了趾屈肌、握力和膝伸肌力量。使用自填式问卷评估身体活动（每天站立/行走时间）和不活动（每天坐着时间）。[结果] 老年男性的趾屈肌、握力和膝伸肌力量显著低于青年男性。老年男性的站立/行走时间和坐着时间低于青年男性。两组中趾屈肌力量均与握力和膝伸肌力量相关。在老年男性中，趾屈肌力量与站立/行走时间相关。与青年男性的平均值相比，老年组的趾屈肌力量显著低于膝伸肌和握力。[结论] 结果表明，与年龄相关的趾屈肌力量下降大于握力和膝伸肌力量下降。老年男性趾屈肌力量的早期丧失可能与身体活动减少有关。
