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Lookup NU author(s): Tom Clifford,
Dr Owen JeffriesORCiD,
Professor Emma Stevenson,
Dr Kelly Bowden DaviesORCiD
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Taylor & Francis Inc. , 2020.
For re-use rights please refer to the publisher's terms and conditions.
We conducted a systematic review and meta-analysis of randomized controlled trials examining the effect of vitamin C and/or E on exercise-induced training adaptations. Medline, Embase and SPORTDiscus databases were searched for articles from inception until June 2019. Inclusion criteria was studies in adult humans where vitamin C and/or E had to be consumed alongside a supervised exercise training program of ≥4 weeks. Nine trials were included in the analysis of aerobic exercise adaptations and nine for resistance training (RT) adaptations. Vitamin C and/or E did not attenuate aerobic exercise induced improvements in maximal aerobic capacity ([Formula: see text]O2max) (SMD -0.14, 95% CI: -0.43 to 0.15, P = 0.35) or endurance performance (SMD -0.01, 95% CI: -0.38 to 0.36, P = 0.97). There were also no effects of these supplements on lean mass and muscle strength following RT (SMD -0.07, 95% CI: -0.36 to 0.23, P = 0.67) and (SMD -0.15, 95% CI: -0.16 to 0.46, P = 0.35), respectively. There was also no influence of age on any of these outcomes (P > 0.05). These findings suggest that vitamin C and/or E does not inhibit exercise-induced changes in physiological function. Studies with larger sample sizes and adequate power are still required.
Author(s): Clifford T, Jeffries O, Stevenson EJ, Bowden Davies KA
Publication type: Article
Publication status: Published
Journal: Critical Reviews in Food Science and Nutrition
Online publication date: 18/12/2019
Acceptance date: 09/12/2019
Date deposited: 08/01/2020
ISSN (print): 1040-8398
ISSN (electronic): 1549-7852
Publisher: Taylor & Francis Inc.
PubMed id: 31851538
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