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Increasing heat storage by wearing extra clothing during upper body exercise up-regulates heat shock protein 70 but does not modify the cytokine response

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journal contribution
posted on 16.09.2016 by Christof Leicht, A. Papanagopolous, S. Haghighat, Steve Faulkner
Plasma heat shock protein 70 (HSP70) concentrations rise during heat stress, which can independently induce cytokine production. Upper body exercise normally results in modest body temperature elevations. The aim of this study was to investigate the impacts of additional clothing on the body temperature, cytokine and HSP70 responses during this exercise modality. Thirteen males performed 45-min constant load arm cranking at 63% maximum aerobic power (62±7%V̇ O2peak) in either a non-permeable whole body suit (intervention, INT) or shorts and T-shirt (control, CON). Exercise resulted in a significant increase of IL-6 and IL-1ra plasma concentrations (P<0.001), with no difference between conditions (P>0.19). The increase in HSP70 from pre to post was only significant for INT (0.12±0.11ng·mL-1 , P<0.01; vs 0.04±0.18 ng·mL-1 , P=0.77). Immediately following exercise, Tcore was elevated by 0.46±0.29 (INT) and 0.37±0.23ºC (CON), respectively (P<0.01), with no difference between conditions (P=0.16). The rise in mean Tskin (2.88±0.50 and 0.30±0.89ºC, respectively) and maximum heat storage (3.24±1.08 and 1.20±1.04J·g-1, respectively) were higher during INT (P<0.01). Despite large differences in heat storage between conditions, the HSP70 elevations during INT, even though significant, were very modest. Possibly, the Tcore elevations were too low to induce a more pronounced HSP70 response to ultimately affect cytokine production.

History

School

  • Sport, Exercise and Health Sciences

Published in

Journal of Sports Sciences

Citation

LEICHT, C.A., ... et al, 2016. Increasing heat storage by wearing extra clothing during upper body exercise up-regulates heat shock protein 70 but does not modify the cytokine response. Journal of Sports Sciences, 35(17), pp.1752-1758 .

Publisher

© Taylor & Francis

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

06/09/2016

Publication date

2016

Notes

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 26th September 2016, available online: http://www.tandfonline.com/10.1080/02640414.2016.1235795.

ISSN

1466-447X

Language

en

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