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NIRS-derived skeletal muscle oxidative capacity is correlated with aerobic fitness and independent of sex
Author(s) -
Austin T. Beever,
Thomas R. Tripp,
Jenny Zhang,
Martin J. MacInnis
Publication year - 2020
Publication title -
journal of applied physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.253
H-Index - 229
eISSN - 8750-7587
pISSN - 1522-1601
DOI - 10.1152/japplphysiol.00017.2020
Subject(s) - aerobic capacity , skeletal muscle , respiratory compensation , oxidative phosphorylation , vo2 max , medicine , gastrocnemius muscle , respiratory exchange ratio , lactate threshold , endocrinology , vastus lateralis muscle , chemistry , anaerobic exercise , biology , heart rate , biochemistry , physical therapy , blood lactate , blood pressure
Near-infrared spectroscopy (NIRS) can be used to measure skeletal muscle oxidative capacity. Here, we demonstrated that NIRS-derived skeletal muscle oxidative capacity of the vastus lateralis was independent of sex, reliable across and within days, and correlated with maximal and submaximal indices of aerobic fitness, including maximal oxygen uptake, lactate threshold, and respiratory compensation point. These findings highlight the utility of NIRS for investigating skeletal muscle oxidative capacity in females and males.

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