Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinses

Oliver Gibson; James Wrightson; Mark Hayes

doi:10.1007/s00421-018-4055-0

Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinses

Oliver Gibson, James Wrightson, Mark Hayes

Research output: Contribution to journal › Article › peer-review

Abstract

Purpose. Cooling sensations elicited by mouth rinsing with L-Menthol have been reported as ergogenic. Presently, responses to L-Menthol mouth rinsing during intermittent sprint performance (ISP) in the heat are unknown and the impact of increased thermal perception on ISP via Capsaicin has also not been quantified. This experiment aimed to identify whether eliciting cooling/warming sensations via L-Menthol/Capsaicin would alter ISP in the heat. Method. Fourteen participants [mass=72±9 kg, V̇O2peak=3.30±0.90 L.min-1], undertook four experimental trials, involving 40 min of ISP in hot conditions (40.2±0.6°C, 42±2%R.H.) with mouth rinsing (25 mL, 6 sec) at the protocol onset, and every 10 min thereafter. Cooling (0.01%L-Menthol; MEN), warming (0.2%Capsaicin; CAP), placebo (0.3 sham-CHO; PLA) and control (water; CON) mouth rinses were utilised. Performance was quantified via power (PP) and work done (WD) during sprints. Heart rate (HR), core (Trec) and skin (Tskin) temperature, perceived exertion (RPE), thermal sensation (Tsens) and comfort (Tcom) were measured at 10 min intervals. Sweat rate (WBSR) was calculated from ∆mass. Result. PP reduced over time (P<0.05), however no change was observed between trials for PP or WD (P>0.05). Tcom increased over time and was lower in MEN (2.7±1.1; P<0.05) with no difference between CAP (3.1±1.2), PLA (3.2±1.3) and CON (3.1±1.3). RPE, Tsens HR, Trec, Tskin increased over time (P<0.05) with no between trial differences (P>0.05). Conclusion. Despite improved thermal comfort via L-Menthol, ISP did not improve. Capsaicin did not alter thermal perception or ISP. The reduction in ISP over time in hot conditions is not influenced by thermal perception.

Original language	English
Pages (from-to)	1-12
Number of pages	12
Journal	European Journal of Applied Physiology
DOIs	https://doi.org/10.1007/s00421-018-4055-0
Publication status	Published - 22 Dec 2018

Bibliographical note

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Keywords

Cooling
Heat stress
Sprint performance
Temperature
Thermal comfort
Thermal sensation
Thermal perception

Access to Document

10.1007/s00421-018-4055-0Licence: CC BY

Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinsesAccepted author manuscript, 777 KB
Intermittent sprint performance in the heat is not alteredFinal published version, 1.22 MBLicence: CC BY

Mark Hayes
- M.Hayesbrighton.acuk
- School of Sport and Health Sciences - Senior Lecturer
- Sport and Exercise Science Research and Enterprise Group
Person: Academic

Cite this

@article{9873fa14f24742cab0989c36f48619fc,

title = "Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinses",

abstract = "Purpose. Cooling sensations elicited by mouth rinsing with L-Menthol have been reported as ergogenic. Presently, responses to L-Menthol mouth rinsing during intermittent sprint performance (ISP) in the heat are unknown and the impact of increased thermal perception on ISP via Capsaicin has also not been quantified. This experiment aimed to identify whether eliciting cooling/warming sensations via L-Menthol/Capsaicin would alter ISP in the heat. Method. Fourteen participants [mass=72±9 kg, {\.V}O2peak=3.30±0.90 L.min-1], undertook four experimental trials, involving 40 min of ISP in hot conditions (40.2±0.6°C, 42±2%R.H.) with mouth rinsing (25 mL, 6 sec) at the protocol onset, and every 10 min thereafter. Cooling (0.01%L-Menthol; MEN), warming (0.2%Capsaicin; CAP), placebo (0.3 sham-CHO; PLA) and control (water; CON) mouth rinses were utilised. Performance was quantified via power (PP) and work done (WD) during sprints. Heart rate (HR), core (Trec) and skin (Tskin) temperature, perceived exertion (RPE), thermal sensation (Tsens) and comfort (Tcom) were measured at 10 min intervals. Sweat rate (WBSR) was calculated from ∆mass. Result. PP reduced over time (P<0.05), however no change was observed between trials for PP or WD (P>0.05). Tcom increased over time and was lower in MEN (2.7±1.1; P<0.05) with no difference between CAP (3.1±1.2), PLA (3.2±1.3) and CON (3.1±1.3). RPE, Tsens HR, Trec, Tskin increased over time (P<0.05) with no between trial differences (P>0.05). Conclusion. Despite improved thermal comfort via L-Menthol, ISP did not improve. Capsaicin did not alter thermal perception or ISP. The reduction in ISP over time in hot conditions is not influenced by thermal perception. ",

keywords = "Cooling, Heat stress, Sprint performance, Temperature, Thermal comfort, Thermal sensation, Thermal perception",

author = "Oliver Gibson and James Wrightson and Mark Hayes",

note = "This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.",

year = "2018",

month = dec,

day = "22",

doi = "10.1007/s00421-018-4055-0",

language = "English",

pages = "1--12",

journal = "European Journal of Applied Physiology",

issn = "1439-6319",

}

TY - JOUR

T1 - Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinses

AU - Gibson, Oliver

AU - Wrightson, James

AU - Hayes, Mark

N1 - This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

PY - 2018/12/22

Y1 - 2018/12/22

N2 - Purpose. Cooling sensations elicited by mouth rinsing with L-Menthol have been reported as ergogenic. Presently, responses to L-Menthol mouth rinsing during intermittent sprint performance (ISP) in the heat are unknown and the impact of increased thermal perception on ISP via Capsaicin has also not been quantified. This experiment aimed to identify whether eliciting cooling/warming sensations via L-Menthol/Capsaicin would alter ISP in the heat. Method. Fourteen participants [mass=72±9 kg, V̇O2peak=3.30±0.90 L.min-1], undertook four experimental trials, involving 40 min of ISP in hot conditions (40.2±0.6°C, 42±2%R.H.) with mouth rinsing (25 mL, 6 sec) at the protocol onset, and every 10 min thereafter. Cooling (0.01%L-Menthol; MEN), warming (0.2%Capsaicin; CAP), placebo (0.3 sham-CHO; PLA) and control (water; CON) mouth rinses were utilised. Performance was quantified via power (PP) and work done (WD) during sprints. Heart rate (HR), core (Trec) and skin (Tskin) temperature, perceived exertion (RPE), thermal sensation (Tsens) and comfort (Tcom) were measured at 10 min intervals. Sweat rate (WBSR) was calculated from ∆mass. Result. PP reduced over time (P<0.05), however no change was observed between trials for PP or WD (P>0.05). Tcom increased over time and was lower in MEN (2.7±1.1; P<0.05) with no difference between CAP (3.1±1.2), PLA (3.2±1.3) and CON (3.1±1.3). RPE, Tsens HR, Trec, Tskin increased over time (P<0.05) with no between trial differences (P>0.05). Conclusion. Despite improved thermal comfort via L-Menthol, ISP did not improve. Capsaicin did not alter thermal perception or ISP. The reduction in ISP over time in hot conditions is not influenced by thermal perception.

AB - Purpose. Cooling sensations elicited by mouth rinsing with L-Menthol have been reported as ergogenic. Presently, responses to L-Menthol mouth rinsing during intermittent sprint performance (ISP) in the heat are unknown and the impact of increased thermal perception on ISP via Capsaicin has also not been quantified. This experiment aimed to identify whether eliciting cooling/warming sensations via L-Menthol/Capsaicin would alter ISP in the heat. Method. Fourteen participants [mass=72±9 kg, V̇O2peak=3.30±0.90 L.min-1], undertook four experimental trials, involving 40 min of ISP in hot conditions (40.2±0.6°C, 42±2%R.H.) with mouth rinsing (25 mL, 6 sec) at the protocol onset, and every 10 min thereafter. Cooling (0.01%L-Menthol; MEN), warming (0.2%Capsaicin; CAP), placebo (0.3 sham-CHO; PLA) and control (water; CON) mouth rinses were utilised. Performance was quantified via power (PP) and work done (WD) during sprints. Heart rate (HR), core (Trec) and skin (Tskin) temperature, perceived exertion (RPE), thermal sensation (Tsens) and comfort (Tcom) were measured at 10 min intervals. Sweat rate (WBSR) was calculated from ∆mass. Result. PP reduced over time (P<0.05), however no change was observed between trials for PP or WD (P>0.05). Tcom increased over time and was lower in MEN (2.7±1.1; P<0.05) with no difference between CAP (3.1±1.2), PLA (3.2±1.3) and CON (3.1±1.3). RPE, Tsens HR, Trec, Tskin increased over time (P<0.05) with no between trial differences (P>0.05). Conclusion. Despite improved thermal comfort via L-Menthol, ISP did not improve. Capsaicin did not alter thermal perception or ISP. The reduction in ISP over time in hot conditions is not influenced by thermal perception.

KW - Cooling

KW - Heat stress

KW - Sprint performance

KW - Temperature

KW - Thermal comfort

KW - Thermal sensation

KW - Thermal perception

U2 - 10.1007/s00421-018-4055-0

DO - 10.1007/s00421-018-4055-0

M3 - Article

SN - 1439-6319

SP - 1

EP - 12

JO - European Journal of Applied Physiology

JF - European Journal of Applied Physiology

ER -

Intermittent sprint performance in the heat is not altered by augmenting thermal perception via L-Menthol or Capsaicin mouth rinses

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Profiles

Mark Hayes

Cite this