Timed consumption of a New Zealand blackcurrant juice support positive affective responses during a self-motivated moderate walking exercise in healthy sedentary adults

Journal of the International Society of Sports Nutrition
Dominic LomiwesSuzanne M Hurst

Abstract

Affective responses experienced during exercise are a significant determinant on exercise adherence. We have previously demonstrated that consumption of New Zealand (NZ) blackcurrants preserves cognition by attenuating the feeling of fatigue. This positive affective response correlated with the ability of blackcurrant polyphenols to support monoamine neurotransmission via inhibition of monoamine oxidase-B (MAO-B) activity. Here we explore how the consumption of a NZ blackcurrant juice (BJ) influenced affective responses and potential ergogenic action on the motivation to adhere to a low impact walking exercise. In a parallel randomized controlled study (Trial registration #: ACTRN12617000319370p, registered 28th February 2017, http://www.anzctr.org.au/ ), 40 healthy sedentary male and female participants drank a BJ or matched placebo (PLA) (n = 20 per group), 1 h prior to a self-motivated treadmill walk, where heart rate and affective responses (exertion [ES] or feeling / mood [FS]) scores) were recorded at 3 or 5 min intervals. Blood glucose, lactate, malondialdehyde (MDA) and platelet MAO-B activity were measured pre- and post-exercise and comparisons were conducted using with Student's t-tests. Subjective data were analysed ...Continue Reading

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Citations

Jun 25, 2020·Journal of Dietary Supplements·Mehmet Akif Şahin PhDMark Elisabeth Theodorus Willems PhD
May 29, 2020·Journal of the International Society of Sports Nutrition·A J BraakhuisR D Hurst
Mar 20, 2021·Inflammopharmacology·Sofia RahmanCijo George Vazhappilly

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