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Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat

Lee Kevin Page, Owen Jeffries, Mark Waldron Orcid Logo

European Journal of Sport Science, Volume: 19, Issue: 8, Pages: 1101 - 1109

Swansea University Author: Mark Waldron Orcid Logo

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DOI (Published version): 10.1080/17461391.2019.1578417

Abstract

This study investigated the effects of oral taurine supplementation on cycling time to exhaustion at a fixed-intensity and thermoregulation in the heat. In a double-blind, randomised crossover design, 11 healthy males participated in a time to exhaustion test in the heat (35°C, 40% RH), cycling at t...

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Published in: European Journal of Sport Science
ISSN: 1746-1391 1536-7290
Published: Taylor and Francis 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa51416
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first_indexed 2019-08-15T21:29:47Z
last_indexed 2019-09-03T14:51:37Z
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spelling 2019-09-03T10:38:41.0320604 v2 51416 2019-08-15 Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat 70db7c6c54d46f5e70b39e5ae0a056fa 0000-0002-2720-4615 Mark Waldron Mark Waldron true false 2019-08-15 STSC This study investigated the effects of oral taurine supplementation on cycling time to exhaustion at a fixed-intensity and thermoregulation in the heat. In a double-blind, randomised crossover design, 11 healthy males participated in a time to exhaustion test in the heat (35°C, 40% RH), cycling at the power output associated with ventilatory threshold, 2 h after ingesting: Taurine (50 mg kg-1) or placebo (3 mg kg-1 maltodextrin). Core and mean skin temperature, mean sweat rate, heart rate, rating of perceived exertion (RPE), thermal comfort and thermal sensation were measured during exercise and blood lactate concentration (B[La]) was measured after exercise. Taurine supplementation increased time to exhaustion by 10% (25.16 min vs. 22.43 min, p = 0.040), end sweat rate by 12.7% (687 nL min-1 vs. 600 nL min-1, p = 0.034) and decreased B[La] by 16.5% (5.75 mmol L-1 vs. 6.85 mmol L-1, p = 0.033). Core temperature was lower in the final 10% of the time to exhaustion (38.5°C vs. 38.1°C, p = 0.049). Taurine supplementation increased time to exhaustion and local sweating, while decreasing RPE and core temperature in the later stages of exercise, as well as reducing post-exercise B[La]. This study provides the evidence of taurine's role in thermoregulatory processes. These findings have implications for the short-term preparation strategies of individuals exercising in the heat. Based on these findings, a single dose of taurine 2 h prior to training or competition would provide an ergogenic and thermoregulatory effect. Journal Article European Journal of Sport Science 19 8 1101 1109 Taylor and Francis 1746-1391 1536-7290 Amino acids, cooling, ergogenic aids, sweating 18 2 2019 2019-02-18 10.1080/17461391.2019.1578417 https://doi.org/10.1080/17461391.2019.1578417 COLLEGE NANME Sport and Exercise Sciences COLLEGE CODE STSC Swansea University 2019-09-03T10:38:41.0320604 2019-08-15T14:22:39.8511358 Lee Kevin Page 1 Owen Jeffries 2 Mark Waldron 0000-0002-2720-4615 3 51416__15772__664b3d2b070649a1b88b09d6cdfa0dec.pdf 51416.pdf 2019-10-31T13:33:14.1360991 Output 315844 application/pdf Accepted Manuscript true 2020-02-18T00:00:00.0000000 true
title Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
spellingShingle Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
Mark Waldron
title_short Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
title_full Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
title_fullStr Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
title_full_unstemmed Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
title_sort Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat
author_id_str_mv 70db7c6c54d46f5e70b39e5ae0a056fa
author_id_fullname_str_mv 70db7c6c54d46f5e70b39e5ae0a056fa_***_Mark Waldron
author Mark Waldron
author2 Lee Kevin Page
Owen Jeffries
Mark Waldron
format Journal article
container_title European Journal of Sport Science
container_volume 19
container_issue 8
container_start_page 1101
publishDate 2019
institution Swansea University
issn 1746-1391
1536-7290
doi_str_mv 10.1080/17461391.2019.1578417
publisher Taylor and Francis
url https://doi.org/10.1080/17461391.2019.1578417
document_store_str 1
active_str 0
description This study investigated the effects of oral taurine supplementation on cycling time to exhaustion at a fixed-intensity and thermoregulation in the heat. In a double-blind, randomised crossover design, 11 healthy males participated in a time to exhaustion test in the heat (35°C, 40% RH), cycling at the power output associated with ventilatory threshold, 2 h after ingesting: Taurine (50 mg kg-1) or placebo (3 mg kg-1 maltodextrin). Core and mean skin temperature, mean sweat rate, heart rate, rating of perceived exertion (RPE), thermal comfort and thermal sensation were measured during exercise and blood lactate concentration (B[La]) was measured after exercise. Taurine supplementation increased time to exhaustion by 10% (25.16 min vs. 22.43 min, p = 0.040), end sweat rate by 12.7% (687 nL min-1 vs. 600 nL min-1, p = 0.034) and decreased B[La] by 16.5% (5.75 mmol L-1 vs. 6.85 mmol L-1, p = 0.033). Core temperature was lower in the final 10% of the time to exhaustion (38.5°C vs. 38.1°C, p = 0.049). Taurine supplementation increased time to exhaustion and local sweating, while decreasing RPE and core temperature in the later stages of exercise, as well as reducing post-exercise B[La]. This study provides the evidence of taurine's role in thermoregulatory processes. These findings have implications for the short-term preparation strategies of individuals exercising in the heat. Based on these findings, a single dose of taurine 2 h prior to training or competition would provide an ergogenic and thermoregulatory effect.
published_date 2019-02-18T04:03:17Z
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score 11.012924

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