老年人四肢骨骼肌肌量和功能的初步研究
白慧婧;孙建琴;陈敏;谢华;徐丹凤;王彦
【期刊名称】《中华老年医学杂志》
【年(卷),期】2016(035)005
【摘要】Objective To investigate the status of appendicular skeletal muscle mass,muscular strength and changes of muscle function in the elderly in Shanghai.Methods A total of 402 participants were recruited from physical examination centers in our hospital.Appendicular skeletal muscle mass (ASM) was measured by bioelectrical impedance analysis (BtA).The ASM index (ASM/height2) was calculated.Muscle function was measured by testing gait speed (m/s).Muscle strength was measured by handgrip strength (HGS) using an electronic hand dynamometer.Results The ASM index significantly declined with age in both men and women (F＝2.133 and 3.124,both P＝0.000).For women,there was a significant difference in HGS only between the youngest age group (aged 60～69 years) and the oldest age group (aged≥80 years)(P＝0.005).For men,HGS was significantly different among all age groups (all P＜0.05).There was no significant difference in gait speed between 60-69 years group and 70-79 years group in both genders (both P＞0.05),while the significant differences in gait speed were observed between the 70-79 years old groups and ≥80year old group in both genders (both P＜0.05).Conclusions Appendicular skeletal muscle