biostudies-literatureUnknown10Berg J<h4>Rationale</h4>The main purposes of this study were to compare mitochondrial respiration in M. triceps brachii and M. vastus lateralis between elite cross-country (XC) skiers and physically active controls (CON), and to explore the associations between mitochondrial respiration in these muscles and peak oxygen uptake ( V˙ O_2peak) in arm- and leg-dominant exercise modes.<h4>Methods</h4>Thirteen male elite XC skiers (age: 25 ± 4; peak oxygen uptake ( V˙ O_2peak): 75.5 ± 4.2 mL⋅kg^-1⋅min^-1) and twelve CON (age: 26 ± 3; V˙ O_2peak: 57.2 ± 6.4 mL⋅kg^-1⋅min^-1) had microbiopsies taken from M. vastus lateralis and M. triceps brachii, which were analyzed for various measures of mitochondrial respiration using high-resolutioFrontiers in physiology365https://www.ebi.ac.uk/biostudies/studies/S-EPMC6461012biostudies-literatureComparison of Mitochondrial Respiration in M. triceps brachii and M. vastus lateralis Between Elite Cross-Country Skiers and Physically Active Controls.PMC6461012Sandbakk OBerg JTjonna AERasch-Halvorsen OUndebakke VAakeroy LfalseComparison of Mitochondrial Respiration in M. triceps brachii and M. vastus lateralis Between Elite Cross-Country Skiers and Physically Active Controls.<h4>Rationale</h4>The main purposes of this study were to compare mitochondrial respiration in M. triceps brachii and M. vastus lateralis between elite cross-country (XC) skiers and physically active controls (CON), and to explore the associations between mitochondrial respiration in these muscles and peak oxygen uptake ( V˙ O_2peak) in arm- and leg-dominant exercise modes.<h4>Methods</h4>Thirteen male elite XC skiers (age: 25 ± 4; peak oxygen uptake ( V˙ O_2peak): 75.5 ± 4.2 mL⋅kg^-1⋅min^-1) and twelve CON (age: 26 ± 3; V˙ O_2peak: 57.2 ± 6.4 mL⋅kg^-1⋅min^-1) had microbiopsies taken from M. vastus lateralis and M. triceps brachii, which were analyzed for various measures of mitochondrial respiration using high-resolutio2019-01-01T00:00:00Z20192025-04-22T17:14:10.086Z2019-06-06T22:55:40ZS-EPMC64610123102433410.3389/fphys.2019.00365