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Lookup NU author(s): Dr Owen JeffriesORCiD
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Taylor & Francis, 2022.
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We investigated the effects of taurine supplementation on cycling time to exhaustion in cold conditions. Eleven males cycled to exhaustion at a power output equivalent to the mid-point between ventilatory threshold and maximum aerobic power following 15-min rest in the cold (apparent temperature of ∼ 4 °C; air flow of 4.17 m·s-1). Two-hours before, participants ingested taurine (50 mg·kg-1) or placebo beverage. Pulmonary gases, carbohydrate (CHO) and fat oxidation, body temperatures, mean local sweat rate, heart rate, rate of perceived exertion (RPE) and thermal comfort were recorded. Time to exhaustion was not different between trials (taurine = 14.6 ± 4.7 min; placebo = 13.4 ± 5.6 min, P = 0.061, d = 0.27). There were no effects (P > 0.05) of taurine on core temperature, mean skin temperature or local sweat rates. However, the placebo condition showed greater (P < 0.05) reductions in arm-to-finger temperature gradient (i.e. vasodilation) across pre-exercise passive cold exposure and increased CHO oxidation (P< 0.05). Participants also reached a thermally ‘comfortable’ level quicker in the taurine condition (P < 0.05). A 50 mg·kg-1 dose of taurine did not statistically benefit endurance exercise after moderate cold exposure but conferred some potential vascular and metabolic effects.
Author(s): Simmonds R, Cole J, Tallent J, Jeffries O, Theis N, Waldron M
Publication type: Article
Publication status: Published
Journal: European Journal of Sport Science
Online publication date: 02/12/2020
Acceptance date: 19/11/2020
Date deposited: 02/12/2020
ISSN (print): 1536-7290
ISSN (electronic): 1746-1391
Publisher: Taylor & Francis
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