J Cachexia Sarcopenia Muscle DOI 10.1007/s13539-014-0143-0

ORIGINAL ARTICLE

Identifying recreational physical activities associated with muscle quality in men and women aged 50 years and over Sébastien Barbat-Artigas & Sophie Dupontgand & Charlotte H. Pion & Yannick Feiter-Murphy & Mylène Aubertin-Leheudre

Received: 24 January 2014 / Accepted: 26 March 2014 # Springer-Verlag Berlin Heidelberg 2014

Abstract Background Several studies conducted in a laboratory-related environment have shown that exercise is associated with increased muscle quality in older adults. The aim of the present study was to investigate whether recreational exercise may also be associated with muscle quality in men and women aged 50 years and over. Methods Data are from 312 individuals (215 women) aged 50 years and older. Body composition (dual-energy X-ray absorptiometry) and knee extension strength (KES) of the right leg (one repetition maximum) were assessed. Muscle quality (MQ) (KES/right lower limb lean mass) was calculated. Recreational exercises (duration and weekly amount) were determined by structured interview. Results The duration of the period during which participants practiced resistance activities was the only predictor of MQ (p =0.018) and explained an additional 1.6 % of the variance in MQ, after controlling for age and gender. Furthermore, the weekly amount of practice of aerobic activities significantly interacted with age (p

Identifying recreational physical activities associated with muscle quality in men and women aged 50 years and over.

Several studies conducted in a laboratory-related environment have shown that exercise is associated with increased muscle quality in older adults. Th...
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