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Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls

Melitta A. Winlove, Andrew M. Jones, Joanne R. Welsman, Melitta McNarry Orcid Logo

European Journal of Applied Physiology, Volume: 108, Issue: 6, Pages: 1169 - 1179

Swansea University Author: Melitta McNarry Orcid Logo

Abstract

The limited available evidence suggests that endurance training does not influence the pulmonary oxygen uptake (V(O)(2)) kinetics of pre-pubertal children. We hypothesised that, in young trained swimmers, training status-related adaptations in the V(O)(2) and heart rate (HR) kinetics would be more e...

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Published in: European Journal of Applied Physiology
ISSN: 1439-6319 1439-6327
Published: 2010
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URI: https://cronfa.swan.ac.uk/Record/cronfa26150
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spelling 2017-11-25T09:44:47.3241148 v2 26150 2016-02-11 Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls 062f5697ff59f004bc8c713955988398 0000-0003-0813-7477 Melitta McNarry Melitta McNarry true false 2016-02-11 STSC The limited available evidence suggests that endurance training does not influence the pulmonary oxygen uptake (V(O)(2)) kinetics of pre-pubertal children. We hypothesised that, in young trained swimmers, training status-related adaptations in the V(O)(2) and heart rate (HR) kinetics would be more evident during upper body (arm cranking) than during leg cycling exercise. Eight swim-trained (T; 11.4 +/- 0.7 years) and eight untrained (UT; 11.5 +/- 0.6 years) girls completed repeated bouts of constant work rate cycling and upper body exercise at 40% of the difference between the gas exchange threshold and peak V(O)(2). The phase II V(O)(2) time constant was significantly shorter in the trained girls during upper body exercise (T: 25 +/- 3 vs. UT: 37 +/- 6 s; P &#60; 0.01), but no training status effect was evident in the cycle response (T: 25 +/- 5 vs. UT: 25 +/- 7 s). The V(O)(2) slow component amplitude was not affected by training status or exercise modality. The time constant of the HR response was significantly faster in trained girls during both cycle (T: 31 +/- 11 vs. UT: 47 +/- 9 s; P &#60; 0.01) and upper body (T: 33 +/- 8 vs. UT: 43 +/- 4 s; P &#60; 0.01) exercise. The time constants of the phase II V(O)(2)and HR response were not correlated regardless of training status or exercise modality. This study demonstrates for the first time that swim-training status influences upper body V(O)(2) kinetics in pre-pubertal children, but that cycle ergometry responses are insensitive to such differences. Journal Article European Journal of Applied Physiology 108 6 1169 1179 1439-6319 1439-6327 Oxygen uptake kinetics, Training, Upper body and leg exercise, Children 1 4 2010 2010-04-01 10.1007/s00421-009-1320-2 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2017-11-25T09:44:47.3241148 2016-02-11T10:21:43.2423317 College of Engineering Engineering Melitta A. Winlove 1 Andrew M. Jones 2 Joanne R. Welsman 3 Melitta McNarry 0000-0003-0813-7477 4 0026150-11022016102359.pdf Paperv2.pdf 2016-02-11T10:23:59.3230000 Output 408875 application/pdf Accepted Manuscript true 2016-02-11T00:00:00.0000000 true
title Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
spellingShingle Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
Melitta McNarry
title_short Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
title_full Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
title_fullStr Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
title_full_unstemmed Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
title_sort Influence of training status and exercise modality on pulmonary O2 uptake kinetics in pre-pubertal girls
author_id_str_mv 062f5697ff59f004bc8c713955988398
author_id_fullname_str_mv 062f5697ff59f004bc8c713955988398_***_Melitta McNarry
author Melitta McNarry
author2 Melitta A. Winlove
Andrew M. Jones
Joanne R. Welsman
Melitta McNarry
format Journal article
container_title European Journal of Applied Physiology
container_volume 108
container_issue 6
container_start_page 1169
publishDate 2010
institution Swansea University
issn 1439-6319
1439-6327
doi_str_mv 10.1007/s00421-009-1320-2
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
document_store_str 1
active_str 0
description The limited available evidence suggests that endurance training does not influence the pulmonary oxygen uptake (V(O)(2)) kinetics of pre-pubertal children. We hypothesised that, in young trained swimmers, training status-related adaptations in the V(O)(2) and heart rate (HR) kinetics would be more evident during upper body (arm cranking) than during leg cycling exercise. Eight swim-trained (T; 11.4 +/- 0.7 years) and eight untrained (UT; 11.5 +/- 0.6 years) girls completed repeated bouts of constant work rate cycling and upper body exercise at 40% of the difference between the gas exchange threshold and peak V(O)(2). The phase II V(O)(2) time constant was significantly shorter in the trained girls during upper body exercise (T: 25 +/- 3 vs. UT: 37 +/- 6 s; P &#60; 0.01), but no training status effect was evident in the cycle response (T: 25 +/- 5 vs. UT: 25 +/- 7 s). The V(O)(2) slow component amplitude was not affected by training status or exercise modality. The time constant of the HR response was significantly faster in trained girls during both cycle (T: 31 +/- 11 vs. UT: 47 +/- 9 s; P &#60; 0.01) and upper body (T: 33 +/- 8 vs. UT: 43 +/- 4 s; P &#60; 0.01) exercise. The time constants of the phase II V(O)(2)and HR response were not correlated regardless of training status or exercise modality. This study demonstrates for the first time that swim-training status influences upper body V(O)(2) kinetics in pre-pubertal children, but that cycle ergometry responses are insensitive to such differences.
published_date 2010-04-01T03:37:00Z
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