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. 2020 Aug 31;53(3):505–516. doi: 10.1249/MSS.0000000000002502

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Copyright © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American College of Sports Medicine.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Association between skeletal muscle fiber type and peak exogenous βHB oxidation rate. A, Vastus lateralis biopsy sample stained with an antislow skeletal myosin heavy-chain primary antibody (fluorescent green). Nuclei are represented in blue (stained with DAPI). Example nonstained fibers (representing fast-glycolytic (IIa) and fast (IIb) fibers) are indicated with the white arrow. B, Relationship between peak exogenous d-βHB oxidation rate (in grams per minute) and skeletal muscle phenotype (in percent).