Journal article 21 views
The effect of a 4 week, remotely administered post-exercise passive leg heating intervention on determinants of endurance perfromance
Kevin John,
Joe Page,
Shane Heffernan 
,
Gill Conway ,
Neil Bezodis ,
Liam Kilduff ,
Brad Clark,
Julien D. Periard,
Mark Waldron
,
Gill Conway ,
Neil Bezodis ,
Liam Kilduff ,
Brad Clark,
Julien D. Periard,
Mark Waldron
European Journal of Applied Physiology
Swansea University Authors:
Joe Page, Shane Heffernan , Gill Conway , Neil Bezodis , Liam Kilduff , Mark Waldron
Abstract
Purpose Post-exercise passive heating has been reported to augment adaptations associated with endurance training. The current study evaluated the effect of a 4 week remotely administered, post-exercise passive leg heating protocol, using an electrically-heated layering ensemble, on determinants of...
| Published in: | European Journal of Applied Physiology |
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| Published: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa67158 |
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| Abstract: |
Purpose Post-exercise passive heating has been reported to augment adaptations associated with endurance training. The current study evaluated the effect of a 4 week remotely administered, post-exercise passive leg heating protocol, using an electrically-heated layering ensemble, on determinants of endurance performance. Methods Thirty recreationally trained participants were randomly allocated to either a post-exercise passive leg heating (PAH, n=16) or unsupervised training only control group (CON, n=14). The PAH group wore the passive heating ensemble for 90-120 min/day, completing a total of 20 (16 post-exercise and 4 stand-alone leg heating) sessions across 4 weeks. Whole-body (peak oxygen uptake, gas exchange threshold, gross efficiency and pulmonary oxygen uptake kinetics), single-leg exercise (critical torque and NIRS derived muscle oxygenation), resting vascular characteristics (flow mediated dilation) and angiogenic blood measures (nitrate, vascular endothelial growth factor and hypoxia inducible factor 1- α) were recorded to characterize the endurance phenotype. All measures were assessed before (PRE), at 2 weeks (MID) and after (POST) the intervention. Results There was no effect of the intervention on test of whole-body endurance capacity, vascular function or blood markers (p>0.05). However, oxygen kinetics were adversely affected by PAH, denoted by a slowing of the phase II time constant; (p=0.02). Furthermore, critical torque–deoxygenation ratio was improved in CON relative to PAH (p=0.03). Conclusion We have demonstrated that PAH had no ergogenic benefit but instead elicited some unfavourable effects on sub-maximal exercise characteristics in recreationally trained individuals. |
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Faculty of Science and Engineering |