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Acute simulated soccer-specific training increases PGC-1α mRNA expression in human skeletal muscle

Jeong, T-S and Bartlett, JD and Joo, C-H and Close, GL and Morton, JP and Drust, B and Louhelainen, J (2015) Acute simulated soccer-specific training increases PGC-1α mRNA expression in human skeletal muscle. Journal of Sports Sciences, 33 (14). pp. 1493-1503. ISSN 0264-0414

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Abstract

The aim of the current study was to quantify oxygen uptake, heart rate and molecular responses of human skeletal muscle associated with mitochondrial biogenesis following an acute bout of simulated soccer training. Muscle biopsies (vastus lateralis) were obtained from nine active men immediately pre-completion, post-completion and 3 h post-completion of a laboratory-based soccer-specific training simulation on a motorised treadmill. The soccer-specific simulation was a similar intensity (55 ± 6% (Formula presented.)) and duration (60 min) as that observed in professional soccer training (e.g. standing 41%, walking 37%, jogging 11%, high-speed running 9% and sprinting 2%). Post-exercise, muscle glycogen decreased (Pre; 397 ± 86 mmol∙kg<sup>−1</sup> dw, Post; 344 ± 64 mmol∙kg<sup>−1</sup> dw; P = 0.03), plasma lactate increased (P < 0.001) up to ~4–5 mmol∙L<sup>−1</sup>, non-esterified fatty acids and glycerol increased (P < 0.001) to values of 0.6 ± 0.2 mmol∙L<sup>−1</sup> and 145 ± 54 μmol∙L<sup>−1</sup>, respectively. PGC-1α mRNA increased (P = 0.009) fivefold 3 h post-exercise. We provide novel data by demonstrating that soccer-specific training is associated with increases in PGC-1α mRNA. These data may have implications for practitioners in better understanding the metabolic and muscle responses to soccer-specific training protocols in the field.

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 23 Dec 2014 available online: http://dx.doi.org/10.1080/02640414.2014.992937
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 1302 Curriculum And Pedagogy
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Taylor & Francis
Date Deposited: 29 Mar 2016 09:28
Last Modified: 23 Jun 2016 23:50
DOI or Identification number: 10.1080/02640414.2014.992937
URI: http://researchonline.ljmu.ac.uk/id/eprint/3338

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