Association Between Muscle Mass, Leg Strength, and Fat Mass With Physical Function in Older Adults: Influence of Age and Sex

被引:84
作者
Bouchard, Danielle R. [1 ]
Heroux, Mariane [1 ]
Janssen, Ian [1 ,2 ]
机构
[1] Queens Univ, Sch Kinesiol & Hlth Studies, Kingston, ON, Canada
[2] Queens Univ, Dept Community Hlth Epidemiol, Kingston, ON, Canada
关键词
body composition; fat-free mass; physical performance; reduced rank regression; LOWER-EXTREMITY PERFORMANCE; DIETARY PATTERNS; BODY-COMPOSITION; SARCOPENIA; WOMEN; MEN; MORTALITY; DETERMINANT; PREDICTORS; DISABILITY;
D O I
10.1177/0898264310388562
中图分类号
R4 [临床医学]; R592 [老年病学];
学科分类号
1002 ; 100203 ; 100602 ;
摘要
Objective: The purposes of this study were to determine the relationship between muscle mass, muscle strength, muscle quality, and fat mass with a composite measure of physical function in older adults, and to determine whether these relations differed by age and sex. Method: Participants consisted of 1280 adults aged >= 55 yr from the NHANES study. Reduced rank regression was used to identify patterns of muscle mass, muscle strength, muscle quality, and fat mass related to physical function. Results: A single relevant pattern emerged that included leg strength and fat mass as predictors of the 7 physical function variables. The leg strength loading was significantly greater than the fat mass loading in men and women aged 55-64 and >= 75, and differed between sexes. Conclusion: Leg strength and fat mass best predict physical function in older adults and the relative importance varies according to age and sex.
引用
收藏
页码:313 / 328
页数:16
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