The Effects of Supplementation with a Vitamin and Mineral Complex with Guaraná Prior to Fasted Exercise on Affect, Exertion, Cognitive Performance, and Substrate Metabolism: A Randomized Controlled Trial

Veasey, Rachel, Haskell, Crystal, Kennedy, David, Wishart, Karl, Maggini, Silvia, Fuchs, Caspar J. and Stevenson, Emma (2015) The Effects of Supplementation with a Vitamin and Mineral Complex with Guaraná Prior to Fasted Exercise on Affect, Exertion, Cognitive Performance, and Substrate Metabolism: A Randomized Controlled Trial. Nutrients, 7 (8). pp. 6109-6127. ISSN 2072-6643

[img]
Preview
Text
nutrients-07-05272.pdf - Published Version
Available under License Creative Commons Attribution 4.0.

Download (352kB) | Preview
Official URL: http://dx.doi.org/10.3390/nu7085272

Abstract

Exercise undertaken in a fasted state can lead to higher post-exercise mental fatigue. The administration of a vitamin and mineral complex with guaraná (MVM + G) has been shown to attenuate mental fatigue and improve performance during cognitively demanding tasks. This placebo-controlled, double-blind, randomized, balanced cross-over study examined the effect of MVM + G consumed prior to morning exercise on cognitive performance, affect, exertion, and substrate metabolism. Forty active males (age 21.4 ± 3.0 year; body mass index (BMI) 24.0 ± 2.4 kg/m2; maximal oxygen consumption (V̇O2max) 57.6 ± 7.3 mL/min/kg) completed two main trials, consuming either MVM + G or placebo prior to a 30-min run at 60% V̇O2max. Supplementation prior to exercise led to a small but significant reduction in Rating of Perceived Exertion (RPE) during exercise compared to the placebo. The MVM + G combination also led to significantly increased accuracy of numeric working memory and increased speed of picture recognition, compared to the placebo. There were no significant effects of supplementation on any other cognitive or mood measures or on substrate metabolism during exercise. These findings demonstrate that consuming a vitamin and mineral complex containing guaraná, prior to exercise, can positively impact subsequent memory performance and reduce perceived exertion during a moderate-intensity run in active males.

Item Type: Article
Additional Information: Crystal Haskell now known as Crystal Haskell-Ramsay.
Uncontrolled Keywords: micronutrients; guaraná; exercise; cognition;memory;mood
Subjects: C800 Psychology
Department: Faculties > Health and Life Sciences > School of Life Sciences > Psychology
Depositing User: Becky Skoyles
Date Deposited: 28 Jul 2015 10:11
Last Modified: 24 Oct 2016 13:22
URI: http://nrl.northumbria.ac.uk/id/eprint/23458

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence