The University of Southampton
University of Southampton Institutional Repository

The accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory and metabolic responses to subsequent low-intensity exercise: a preliminary study

The accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory and metabolic responses to subsequent low-intensity exercise: a preliminary study
The accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory and metabolic responses to subsequent low-intensity exercise: a preliminary study

The study investigated the accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory, metabolic and neuromuscular responses to low-intensity exercise performed hours later. Fourteen young men cycled at low-intensity (~60 rpm at 50% maximal oxygen uptake) for 10 min before, and 12 h after: concentric-biased, single-leg cycling exercise (CON) (performed ~19:30 h) and eccentric-biased, double-leg knee extension exercise (ECC) (~06:30 h the following morning). Respiratory measures were sampled breath-by-breath, with oxidation values derived from stoichiometry equations. Knee extensor neuromuscular function was assessed before and after CON and ECC. Cardiorespiratory responses during low-intensity cycling were unchanged by accumulative CON and ECC. The RER was lower during low-intensity exercise 12 h after CON and ECC (0.88 ± 0.08), when compared to baseline (0.92 ± 0.09; p = 0.02). Fat oxidation increased from baseline (0.24 ± 0.2 g·min(-1)) to 12 h after CON and ECC (0.39 ± 0.2 g·min(-1); p = 0.01). Carbohydrate oxidation decreased from baseline (1.59 ± 0.4 g·min(-1)) to 12 h after CON and ECC (1.36 ± 0.4 g·min(-1); p = 0.03). These were accompanied by knee extensor force loss (right leg: -11.6%, p < 0.001; left leg: -10.6%, p = 0.02) and muscle soreness (right leg: 2.5 ± 0.9, p < 0.0001; left leg: 2.3 ± 1.2, p < 0.01). Subsequent concentric-biased and eccentric-biased exercise led to increased fat oxidation and decreased carbohydrate oxidation, without impairing cardiorespiration, during low-intensity cycling. An accumulation of fatiguing and damaging exercise increases fat utilisation during low intensity exercise performed as little as 12 h later.

Journal Article
1640-5544
131-140
Gavin, James Peter
e0d9b404-3f63-4855-8e64-bf1692e6cc3f
Myers, Stephen D
df70fcbd-572b-4579-98fc-3133c8b3de21
Willems, Mark Elisabeth Theodorus
14165c17-e1a0-4577-943b-eaecc1470467
Gavin, James Peter
e0d9b404-3f63-4855-8e64-bf1692e6cc3f
Myers, Stephen D
df70fcbd-572b-4579-98fc-3133c8b3de21
Willems, Mark Elisabeth Theodorus
14165c17-e1a0-4577-943b-eaecc1470467

Gavin, James Peter, Myers, Stephen D and Willems, Mark Elisabeth Theodorus (2015) The accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory and metabolic responses to subsequent low-intensity exercise: a preliminary study. Journal of Human Kinetics, 49 (1), 131-140. (doi:10.1515/hukin-2015-0115).

Record type: Article

Abstract

The study investigated the accumulative effect of concentric-biased and eccentric-biased exercise on cardiorespiratory, metabolic and neuromuscular responses to low-intensity exercise performed hours later. Fourteen young men cycled at low-intensity (~60 rpm at 50% maximal oxygen uptake) for 10 min before, and 12 h after: concentric-biased, single-leg cycling exercise (CON) (performed ~19:30 h) and eccentric-biased, double-leg knee extension exercise (ECC) (~06:30 h the following morning). Respiratory measures were sampled breath-by-breath, with oxidation values derived from stoichiometry equations. Knee extensor neuromuscular function was assessed before and after CON and ECC. Cardiorespiratory responses during low-intensity cycling were unchanged by accumulative CON and ECC. The RER was lower during low-intensity exercise 12 h after CON and ECC (0.88 ± 0.08), when compared to baseline (0.92 ± 0.09; p = 0.02). Fat oxidation increased from baseline (0.24 ± 0.2 g·min(-1)) to 12 h after CON and ECC (0.39 ± 0.2 g·min(-1); p = 0.01). Carbohydrate oxidation decreased from baseline (1.59 ± 0.4 g·min(-1)) to 12 h after CON and ECC (1.36 ± 0.4 g·min(-1); p = 0.03). These were accompanied by knee extensor force loss (right leg: -11.6%, p < 0.001; left leg: -10.6%, p = 0.02) and muscle soreness (right leg: 2.5 ± 0.9, p < 0.0001; left leg: 2.3 ± 1.2, p < 0.01). Subsequent concentric-biased and eccentric-biased exercise led to increased fat oxidation and decreased carbohydrate oxidation, without impairing cardiorespiration, during low-intensity cycling. An accumulation of fatiguing and damaging exercise increases fat utilisation during low intensity exercise performed as little as 12 h later.

Text
Gavin et al. 2015_accumm - Version of Record
Download (366kB)

More information

e-pub ahead of print date: 30 December 2015
Published date: December 2015
Keywords: Journal Article

Identifiers

Local EPrints ID: 430003
URI: http://eprints.soton.ac.uk/id/eprint/430003
ISSN: 1640-5544
PURE UUID: 134cd7af-626f-4575-a324-554db9e96af5
ORCID for James Peter Gavin: ORCID iD orcid.org/0000-0003-0574-0502

Catalogue record

Date deposited: 09 Apr 2019 16:30
Last modified: 07 Oct 2020 02:24

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×