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Title

Exercise efficiency relates with mitochondrial content and function in older adults.

Authors

Broskey, Nicholas T.; Boss, Andreas; Fares, Elie‐Jacques; Greggio, Chiara; Gremion, Gerald; Schlüter, Leo; Hans, Didier; Kreis, Roland; Boesch, Chris; Amati, Francesca

Abstract

Chronic aerobic exercise has been shown to increase exercise efficiency, thus allowing less energy expenditure for a similar amount of work. The extent to which skeletal muscle mitochondria play a role in this is not fully understood, particularly in an elderly population. The purpose of this study was to determine the relationship of exercise efficiency with mitochondrial content and function. We hypothesized that the greater the mitochondrial content and/or function, the greater would be the efficiencies. Thirty-eight sedentary (S, n = 23, 10F/13M) or athletic (A, n = 15, 6F/9M) older adults (66.8 ± 0.8 years) participated in this cross sectional study.

Subjects

AEROBIC exercises; MUSCLE mitochondria; OLDER people; LEAN body mass; DUAL-energy X-ray absorptiometry

Publication

Physiological Reports, 2015, Vol 3, Issue 6, pn/a

ISSN

2051-817X

Publication type

Academic Journal

DOI

10.14814/phy2.12418

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