Research article summary (published 29 Sep 2008):

Association between muscle mass and isometric muscle strength in well-functioning older men and women.

Full Abstract

This cross-sectional study examined the relationship between arm and leg muscle mass and isometric muscle strength in 465 well-functioning women and 439 well-functioning men from the NuAge cohort, age 67-84 years. Leg and arm muscle mass and body fat were measured by dual-X-ray absorptiometry. Maximum voluntary isometric strength of knee extensors and elbow flexors was measured using the belt-resisted method and a handheld dynamometer, respectively. The regression model including leg muscle mass, physical activity level, age, height, and body fat explained 14% of the variance in quadriceps strength in men and 11% in women (p < .001), whereas the model including arm muscle mass and the same covariates elucidated 40% and 28%, respectively, of the variance in biceps strength (p < .001). These results suggest that muscle mass does not play a crucial role in the variations of isometric muscle strength in well-functioning elderly.

Author information

Author/s: Beliaeff, Serge (S); Bouchard, Danielle R (DR); Hautier, Christophe (C); Brochu, Martin (M); Dionne, Isabelle J (IJ);

Affiliation: University Institute of Geriatrics, Universityof Sherbrooke, Quebec, Canada.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Journal of aging and physical activity (J Aging Phys Act), published in United States. (Language: eng)

Reference: 2008-Oct; vol 16 (issue 4) : pp 484-93

Dates: Created 2008/11/26; Completed 2008/12/31;

PMID: 19033607, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adipose Tissue Age Factors Aged Aged, 80 and over Arm - physiology Body Composition Exercise Tolerance Female Health Status

Health Status Humans Isometric Contraction - physiology Leg - physiology Male Motor Activity Muscle Strength - physiology Muscle, Skeletal - physiology Regression Analysis

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