Effects of exercise-induced muscle damage on resting metabolic rate, sub-maximal running and post-exercise oxygen consumption

Hdl Handle:
http://hdl.handle.net/10034/320294
Title:
Effects of exercise-induced muscle damage on resting metabolic rate, sub-maximal running and post-exercise oxygen consumption
Authors:
Burt, Dean G.; Lamb, Kevin L.; Nicholas, Ceri; Twist, Craig
Abstract:
Exercise-induced muscle damage (EIMD), described as the acute weakness of the musculature after unaccustomed eccentric exercise, increases oxidative metabolism at rest and during endurance exercise. However, it is not known whether oxygen uptake during recovery from endurance exercise is increased when experiencing symptoms of EIMD. Therefore, the purpose of this study was to investigate the effects of EIMD on physiological and metabolic responses before, during and after sub-maximal running. After a 12 h fast, eight healthy male participants completed baseline measurements comprising resting metabolic rate (RMR), indirect markers of EIMD, 10 min of sub-maximal running and 30 min of recovery to ascertain excess post-exercise oxygen consumption (EPOC). Measurements were then repeated at 24 and 48 h after 100 Smith-machine squats. Data analysis revealed significant (PB0.05) increases in muscle soreness and creatine kinase (CK) and decreases in peak knee extensor torque at 24 and 48 h after squatting exercise. Moreover, RMR, physiological, metabolic and perceptual responses during sub-maximal running and EPOC were increased in the two days after squatting exercise (PB0.05). It is suggested that the elevated RMR was a consequence of a raised energy requirement for the degradation and resynthesis of damaged muscle fibres. The increased oxygen demand during sub-maximal running after muscle damage was responsible for the increase in EPOC. Individuals engaging in unaccustomed resistance exercise that results in muscle damage should be mindful of the increases in resting energy expenditure and increased metabolic demand to exercise in the days that follow.
Affiliation:
Staffordshire University; University of Chester
Citation:
European Journal of Sport Science, 2014, 14(4), pp. 337-344
Publisher:
Taylor & Francis
Journal:
European Journal of Sport Science
Publication Date:
8-Apr-2013
URI:
http://hdl.handle.net/10034/320294
DOI:
10.1080/17461391.2013.783628
Additional Links:
http://www.tandfonline.com/toc/tejs20/current
Type:
Article
Language:
en
Description:
This journal article is not available through ChesterRep.
ISSN:
1746-1391; 1536-7290
Appears in Collections:
Sport and Exercise Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorBurt, Dean G.en
dc.contributor.authorLamb, Kevin L.en
dc.contributor.authorNicholas, Cerien
dc.contributor.authorTwist, Craigen
dc.date.accessioned2014-06-10T10:49:51Zen
dc.date.available2014-06-10T10:49:51Zen
dc.date.issued2013-04-08en
dc.identifier.citationEuropean Journal of Sport Science, 2014, 14(4), pp. 337-344en
dc.identifier.issn1746-1391en
dc.identifier.issn1536-7290en
dc.identifier.doi10.1080/17461391.2013.783628en
dc.identifier.urihttp://hdl.handle.net/10034/320294en
dc.descriptionThis journal article is not available through ChesterRep.en
dc.description.abstractExercise-induced muscle damage (EIMD), described as the acute weakness of the musculature after unaccustomed eccentric exercise, increases oxidative metabolism at rest and during endurance exercise. However, it is not known whether oxygen uptake during recovery from endurance exercise is increased when experiencing symptoms of EIMD. Therefore, the purpose of this study was to investigate the effects of EIMD on physiological and metabolic responses before, during and after sub-maximal running. After a 12 h fast, eight healthy male participants completed baseline measurements comprising resting metabolic rate (RMR), indirect markers of EIMD, 10 min of sub-maximal running and 30 min of recovery to ascertain excess post-exercise oxygen consumption (EPOC). Measurements were then repeated at 24 and 48 h after 100 Smith-machine squats. Data analysis revealed significant (PB0.05) increases in muscle soreness and creatine kinase (CK) and decreases in peak knee extensor torque at 24 and 48 h after squatting exercise. Moreover, RMR, physiological, metabolic and perceptual responses during sub-maximal running and EPOC were increased in the two days after squatting exercise (PB0.05). It is suggested that the elevated RMR was a consequence of a raised energy requirement for the degradation and resynthesis of damaged muscle fibres. The increased oxygen demand during sub-maximal running after muscle damage was responsible for the increase in EPOC. Individuals engaging in unaccustomed resistance exercise that results in muscle damage should be mindful of the increases in resting energy expenditure and increased metabolic demand to exercise in the days that follow.en
dc.language.isoenen
dc.publisherTaylor & Francisen
dc.relation.urlhttp://www.tandfonline.com/toc/tejs20/currenten
dc.rightsArchived with thanks to European Journal of Sport Scienceen
dc.subjectmuscle-damaging exerciseen
dc.subjectresting energy expenditureen
dc.subjectpost-exercise oxygen consumptionen
dc.titleEffects of exercise-induced muscle damage on resting metabolic rate, sub-maximal running and post-exercise oxygen consumptionen
dc.typeArticleen
dc.contributor.departmentStaffordshire University; University of Chesteren
dc.identifier.journalEuropean Journal of Sport Scienceen
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