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Appl Physiol Nutr Metab. 2018 Mar;43(3):303-306. doi: 10.1139/apnm-2017-0587. Epub 2017 Nov 10.

A pilot study investigating reactive oxygen species production in capillary blood after a marathon and the influence of an antioxidant-rich beetroot juice.

Author information

1
a School of Biomedical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
2
b Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
3
c Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK.
4
d Water Research Group, School of Environmental Sciences and Development, Northwest University, Potchefstroom 2520, South Africa.

Abstract

We report that reactive oxygen species (ROS), as measured in capillary blood taken from the finger-tip, increased after a marathon (+128% P < 0.01; effect size = 1.17), indicating that this collection method might be useful for measuring ROS in field settings. However, mitochondrial DNA damage remained unchanged. Beetroot juice, taken before and after exercise, was unable to mitigate exercise-induced ROS production, questioning its use an antioxidant-rich food.

KEYWORDS:

beetroot; course; espèces réactives de l’oxygène; exercice physique; exercise; jus de betterave; reactive oxygen species; running

PMID:
29125915
DOI:
10.1139/apnm-2017-0587
[Indexed for MEDLINE]

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