协和医学杂志2025，Vol.16Issue(3)：627-633,7.DOI:10.12290/xhyxzz.2025-0202
老年人四肢骨骼肌质量指数与肌肉力量的相关性研究:基于2024年全国常态化国民体质监测数据
Cross-sectional Analysis of ASMI and Muscle Strength in Older Adults:Based on the 2024 National Routine Physical Fitness Surveillance Database
摘要
Abstract
Objective To explore the dose-response correlation between appendicular skeletal muscle index(ASMI)and muscle strength in older adults.Methods This study included adults aged 60-79 years from the 2024 National Routine Physical Fitness Surveillance database.ASMI was used to assess muscle mass,while handgrip strength and 30-second chair stand test(30-s CST)repetitions were employed to evaluate muscle strength.Linear regression analyses,adjusted for age and body mass index(BMI),were performed to examine the associations between ASMI and handgrip strength/30-s CST.Additionally,restricted cubic spline(RCS)models were applied for dose-response analysis.Results A total of 68 038 older adults(56.3％female,mean age 68.0±5.4 years)were included.Males exhibited significantly higher handgrip strength(33.6±7.8 kg vs.23.4±5.6 kg,P＜0.001)and ASMI(13.6±1.3 kg/m2 vs.11.4±1.2 kg/m2,P＜0.001)than females.Linear regression revealed significant positive associations between ASMI and both handgrip strength(β=0.940,95％CI:0.930-0.950,P＜0.001)and 30-s CST repetitions(β=0.008,95％CI:0.005-0.011,P＜0.001),with consistent trends across genders.RCS analysis identified a threshold effect of ASMI on hand-grip strength in older men(cut-off:13.55 kg/m2,P＜0.001),but not on 30-s CST(P=0.090).In women,significant thresholds were observed for both handgrip strength and 30-s CST(cut-off:11.25 kg/m2,P＜0.001).Below these thresholds,muscle strength declined rapidly with decreasing ASMI.Conclusions Muscle mass and strength are significantly positively correlated in older adults.Personalized muscle health inter-ventions should be considered to reduce the rate of decline in muscle strength,when ASMI falls below 13.55 kg/m2 in men or 11.25 kg/m2 in women.关键词
四肢骨骼肌质量指数/握力/30 s坐站次数/肌肉质量/肌肉力量/临界值Key words
appendicular skeletal muscle index/grip strength/30-second chair stand test/muscle mass/muscle strength/cut-off分类
预防医学引用本文复制引用
肖辰辉,王成龙,冯强,范超群,王晶晶..老年人四肢骨骼肌质量指数与肌肉力量的相关性研究:基于2024年全国常态化国民体质监测数据[J].协和医学杂志,2025,16(3):627-633,7.基金项目
国家体育总局全民健身普及与推广工作项目 Popularization and Promotion of National Fitness from the General Administration of Sport of China （）
