Open AccessIdentifying recreational physical activities associated with muscle quality in men and women aged 50 years and over
Author(s) -
Barbat-Artigas Sébastien,
Dupontgand Sophie,
Pion Charlotte H.,
Feiter-Murphy Yannick,
Aubertin-Leheudre Mylène
Publication year - 2014
Publication title -
journal of cachexia, sarcopenia and muscle
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.803
H-Index - 66
eISSN - 2190-6009
pISSN - 2190-5991
DOI - 10.1007/s13539-014-0143-0
Subject(s) - aerobic exercise , physical therapy , medicine , resistance training , lean body mass , recreation , muscle strength , analysis of variance , gerontology , physical medicine and rehabilitation , psychology , demography , body weight , biology , ecology , sociology
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 < 0.001) to determine MQ. Conclusions Findings suggest that long‐term engagement in resistance exercise is beneficial for muscle quality and should be encouraged. Furthermore, beyond 60 years, aerobic activities also seem to be positively associated with muscle quality.