The effect of astaxanthin supplementation on performance and fat oxidation during a 40 km cycling time trial

Brown, D.R., Warner, A.R., Deb, S., Gough, L.A., Sparks, S.A. and McNaughton, L.R. 2021. The effect of astaxanthin supplementation on performance and fat oxidation during a 40 km cycling time trial. Journal of Science and Medicine in Sport. 24 (1), pp. 92-97. https://doi.org/10.1016/j.jsams.2020.06.017

TitleThe effect of astaxanthin supplementation on performance and fat oxidation during a 40 km cycling time trial
TypeJournal article
AuthorsBrown, D.R., Warner, A.R., Deb, S., Gough, L.A., Sparks, S.A. and McNaughton, L.R.
Abstract

Objectives This study aimed to investigate whether supplementation with 12 mg⋅day⁻¹ astaxanthin for 7 days can improve exercise performance and metabolism during a 40 km cycling time trial. Design A randomised, double-blind, crossover design was employed. Methods Twelve recreationally trained male cyclists (VO2peak: 56.5 ± 5.5 mL⋅ kg⁻¹⋅ min⁻¹, Wmax: 346.8 ± 38.4 W) were recruited. Prior to each experimental trial, participants were supplemented with either 12 mg⋅day⁻¹ astaxanthin or an appearance-matched placebo for 7 days (separated by 14 days of washout). On day 7 of supplementation, participants completed a 40 km cycling time trial on a cycle ergometer, with indices of exercise metabolism measured throughout. Results Time to complete the 40 km cycling time trial was improved by 1.2 ± 1.7% following astaxanthin supplementation, from 70.76 ± 3.93 min in the placebo condition to 69.90 ± 3.78 min in the astaxanthin condition (mean improvement = 51 ± 71 s, p = 0.029, g = 0.21). Whole-body fat oxidation rates were also greater (+0.09 ± 0.13 g min⁻¹, p = 0.044, g = 0.52), and the respiratory exchange ratio lower (-0.03 ± 0.04, p = 0.024, g = 0.60) between 39–40 km in the astaxanthin condition. Conclusions Supplementation with 12 mg day⁻¹ astaxanthin for 7 days provided an ergogenic benefit to 40 km cycling time trial performance in recreationally trained male cyclists and enhanced whole-body fat oxidation rates in the final stages of this endurance-type performance event.

JournalJournal of Science and Medicine in Sport
Journal citation24 (1), pp. 92-97
ISSN1440-2440
Year2021
PublisherElsevier
Accepted author manuscript
License
CC BY-NC-ND 4.0
File Access Level
Open (open metadata and files)
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jsams.2020.06.017
Web address (URL)https://www.sciencedirect.com/science/article/pii/S1440244020306794
Publication dates
Published online03 Jul 2020
Published in print01 Jan 2021

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