The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females

High-fitness individuals have been suggested to be at risk of a poor vitamin B2 (riboflavin) status due to a potentially higher vitamin B2 demand, as measured by the erythrocyte glutathione reductase (EGR) activation coefficient (EGRAC). Longer-term exercise interventions have been shown to result i...

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Autores principales:	Joëlle J. E. Janssen, Bart Lagerwaard, Arie G. Nieuwenhuizen, Silvie Timmers, Vincent C. J. de Boer, Jaap Keijer
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	vitamin B2 status exercise EGRAC erythrocyte glutathione reductase high- and low-fit females Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/f909bc767e0c4e139d4fc9e64d8ec9f0
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spelling	oai:doaj.org-article:f909bc767e0c4e139d4fc9e64d8ec9f02021-11-25T18:36:44ZThe Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females10.3390/nu131140972072-6643https://doaj.org/article/f909bc767e0c4e139d4fc9e64d8ec9f02021-11-01T00:00:00Zhttps://www.mdpi.com/2072-6643/13/11/4097https://doaj.org/toc/2072-6643High-fitness individuals have been suggested to be at risk of a poor vitamin B2 (riboflavin) status due to a potentially higher vitamin B2 demand, as measured by the erythrocyte glutathione reductase (EGR) activation coefficient (EGRAC). Longer-term exercise interventions have been shown to result in a lower vitamin B2 status, but studies are contradictory. Short-term exercise effects potentially contribute to discrepancies between studies but have only been tested in limited study populations. This study investigated if vitamin B2 status, measured by EGRAC, is affected by a single exercise bout in females who differ in fitness levels, and that represents long-term physical activity. At baseline and overnight after a 60-min cycling bout at 70% <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak, EGR activity and EGRAC were measured in 31 young female adults, divided into a high-fit (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak ≥ 47 mL/kg/min, N = 15) and low-fit (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak ≤ 37 mL/kg/min, N = 16) group. A single exercise bout significantly increased EGR activity in high-fit and low-fit females (P<sub>time</sub> = 0.006). This response was not affected by fitness level (P<sub>timegroup</sub> = 0.256). The effect of exercise on EGRAC was not significant (P<sub>time</sub> = 0.079) and not influenced by EGR activity. The exercise response of EGRAC was not significantly different between high-fit and low-fit females (P<sub>timegroup</sub> = 0.141). Thus, a single exercise bout increased EGR activity, but did not affect EGRAC, indicating that vitamin B2 status was not affected. The exercise response on EGRAC and EGR did not differ between high-fit and low-fit females.Joëlle J. E. JanssenBart LagerwaardArie G. NieuwenhuizenSilvie TimmersVincent C. J. de BoerJaap KeijerMDPI AGarticlevitamin B2 statusexerciseEGRACerythrocyte glutathione reductasehigh- and low-fit femalesNutrition. Foods and food supplyTX341-641ENNutrients, Vol 13, Iss 4097, p 4097 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	vitamin B2 status exercise EGRAC erythrocyte glutathione reductase high- and low-fit females Nutrition. Foods and food supply TX341-641
spellingShingle	vitamin B2 status exercise EGRAC erythrocyte glutathione reductase high- and low-fit females Nutrition. Foods and food supply TX341-641 Joëlle J. E. Janssen Bart Lagerwaard Arie G. Nieuwenhuizen Silvie Timmers Vincent C. J. de Boer Jaap Keijer The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
description	High-fitness individuals have been suggested to be at risk of a poor vitamin B2 (riboflavin) status due to a potentially higher vitamin B2 demand, as measured by the erythrocyte glutathione reductase (EGR) activation coefficient (EGRAC). Longer-term exercise interventions have been shown to result in a lower vitamin B2 status, but studies are contradictory. Short-term exercise effects potentially contribute to discrepancies between studies but have only been tested in limited study populations. This study investigated if vitamin B2 status, measured by EGRAC, is affected by a single exercise bout in females who differ in fitness levels, and that represents long-term physical activity. At baseline and overnight after a 60-min cycling bout at 70% <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak, EGR activity and EGRAC were measured in 31 young female adults, divided into a high-fit (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak ≥ 47 mL/kg/min, N = 15) and low-fit (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mover accent="true"><mi mathvariant="normal">V</mi><mo>·</mo></mover></mrow></semantics></math></inline-formula>O<sub>2</sub>peak ≤ 37 mL/kg/min, N = 16) group. A single exercise bout significantly increased EGR activity in high-fit and low-fit females (P<sub>time</sub> = 0.006). This response was not affected by fitness level (P<sub>timegroup</sub> = 0.256). The effect of exercise on EGRAC was not significant (P<sub>time</sub> = 0.079) and not influenced by EGR activity. The exercise response of EGRAC was not significantly different between high-fit and low-fit females (P<sub>timegroup</sub> = 0.141). Thus, a single exercise bout increased EGR activity, but did not affect EGRAC, indicating that vitamin B2 status was not affected. The exercise response on EGRAC and EGR did not differ between high-fit and low-fit females.
format	article
author	Joëlle J. E. Janssen Bart Lagerwaard Arie G. Nieuwenhuizen Silvie Timmers Vincent C. J. de Boer Jaap Keijer
author_facet	Joëlle J. E. Janssen Bart Lagerwaard Arie G. Nieuwenhuizen Silvie Timmers Vincent C. J. de Boer Jaap Keijer
author_sort	Joëlle J. E. Janssen
title	The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
title_short	The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
title_full	The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
title_fullStr	The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
title_full_unstemmed	The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females
title_sort	effect of a single bout of exercise on vitamin b2 status is not different between high- and low-fit females
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f909bc767e0c4e139d4fc9e64d8ec9f0
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The Effect of a Single Bout of Exercise on Vitamin B2 Status Is Not Different between High- and Low-Fit Females

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