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. 2009 Feb 26;106(5):1611–1617. doi: 10.1152/japplphysiol.91587.2008

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Copyright © 2009, American Physiological Society

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Fig. 3. — Normalized power comparison of vastus lateralis myosin heavy chain (MHC) I and IIa muscle fibers among inactive young (50) and older (48, 50, 51, 53) individuals. Data from 21- and 85-yr-old women are from the present study.