The associations of muscle size and density with handgrip strength and timed up and go test
10.3760/cma.j.issn.0254-9026.2022.04.009
- VernacularTitle:肌肉量和密度与握力及起立-行走测试的相关性研究
- Author:
Wei SUN
1
;
Yandong LIU
;
Yuling LI
;
Xiufang FENG
;
Hao WANG
;
Xiaoshan LIU
;
Guocai LIU
;
Hongyan JIA
;
Jianye LI
;
Shuo CHEN
;
Lu YIN
;
Ping ZHANG
;
Xiaoguang CHENG
;
Ling WANG
Author Information
1. 北京市西城区新街口社区卫生服务中心，北京 100035
- Keywords:
Muscle size;
Muscle density;
Handgrip strength;
Physical performance
- From:
Chinese Journal of Geriatrics
2022;41(4):406-410
- CountryChina
- Language:Chinese
-
Abstract:
Objective:The aim of this study was to explore the associations of muscle size and density with handgrip strength(HGS)and the Timed Up and Go(TUG)test.Methods:Totally 301 participants living in the Xinjiekou community near Beijing Jishuitan Hospital were recruited for CT imaging of the hip and a 1-cm slice of the mid-thigh.The cross-sectional area and density of the gluteus maximus and the mid-thigh muscles were estimated by the Osirix viewer based on CT images.HGS and TUG were also performed in these subjects.Logistic regression analysis was used to evaluate the correlations of muscle density and size with TUG and grip strength.Results:In women, after adjustment for age and BMI, the density of the gluteus maximus was negatively correlated with TUG( P trend=0.0366), while the size of the gluteus maximus and the mid-thigh muscles was not correlated with TUG.In men, the density or size of these muscles was not correlated with TUG.After adjustment for age and BMI, the density of the gluteus maximus was positively correlated with grip strength( P trend=0.0334)and the size of the mid-thigh muscles was also positively correlated with grip strength( P trend=0.0155)in men, but they were not correlated with grip strength in women. Conclusions:There were sex differences in the relationship between muscle size or density and grip strength or timed up and go.The density of the gluteus maximus is associated with muscle strength and physical performance while the size of the mid-thigh muscles is correlated with muscle strength.
