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The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes
Many studies have tested intermittent fasting (IF) in athletes, but its effects on female CrossFit athletes remain relatively unexplored in the existing literature. The aim of this study was to evaluate and compare the effects of 24-h IF on the physical performance of female CrossFit practitioners....
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674902/ https://www.ncbi.nlm.nih.gov/pubmed/38004236 http://dx.doi.org/10.3390/nu15224841 |
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author | Eroglu, Melike Nur Rodríguez-Longobardo, Celia Ramírez-Adrados, Ana Colina-Coca, Clara Burgos-Postigo, Silvia López-Torres, Olga Fernández-Elías, Valentín E. |
author_facet | Eroglu, Melike Nur Rodríguez-Longobardo, Celia Ramírez-Adrados, Ana Colina-Coca, Clara Burgos-Postigo, Silvia López-Torres, Olga Fernández-Elías, Valentín E. |
author_sort | Eroglu, Melike Nur |
collection | PubMed |
description | Many studies have tested intermittent fasting (IF) in athletes, but its effects on female CrossFit athletes remain relatively unexplored in the existing literature. The aim of this study was to evaluate and compare the effects of 24-h IF on the physical performance of female CrossFit practitioners. Eleven female CrossFit athletes (age: 30.91 ± 3.42, weight: 65.26 ± 7.55 kg, height: 1.66 ± 0.05 m) participated in the study. The study used a crossover design with fasting and eating conditions. Participants completed an exercise test, standing long jump, and handgrip strength assessment. Hydration status, heart rate, blood lactate, blood glucose, rates of perceived exertion, and hunger were measured. Results showed significant differences in blood lactate concentration (F = 5.435, p = 0.042, η2p = 0.352). Resting blood lactate concentration was significantly lower in the fasting trial than in the eating trial (p < 0.001), but post-exercise blood lactate concentrations were higher in the fasting trial than in the eating trial (p < 0.001). No differences were found in performance times (p > 0.05). In conclusion, this pilot study of females suggests that 24-h fasting does not impair exercise performance or negatively affect physiological parameters in CrossFit athletes. |
format | Online Article Text |
id | pubmed-10674902 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106749022023-11-20 The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes Eroglu, Melike Nur Rodríguez-Longobardo, Celia Ramírez-Adrados, Ana Colina-Coca, Clara Burgos-Postigo, Silvia López-Torres, Olga Fernández-Elías, Valentín E. Nutrients Article Many studies have tested intermittent fasting (IF) in athletes, but its effects on female CrossFit athletes remain relatively unexplored in the existing literature. The aim of this study was to evaluate and compare the effects of 24-h IF on the physical performance of female CrossFit practitioners. Eleven female CrossFit athletes (age: 30.91 ± 3.42, weight: 65.26 ± 7.55 kg, height: 1.66 ± 0.05 m) participated in the study. The study used a crossover design with fasting and eating conditions. Participants completed an exercise test, standing long jump, and handgrip strength assessment. Hydration status, heart rate, blood lactate, blood glucose, rates of perceived exertion, and hunger were measured. Results showed significant differences in blood lactate concentration (F = 5.435, p = 0.042, η2p = 0.352). Resting blood lactate concentration was significantly lower in the fasting trial than in the eating trial (p < 0.001), but post-exercise blood lactate concentrations were higher in the fasting trial than in the eating trial (p < 0.001). No differences were found in performance times (p > 0.05). In conclusion, this pilot study of females suggests that 24-h fasting does not impair exercise performance or negatively affect physiological parameters in CrossFit athletes. MDPI 2023-11-20 /pmc/articles/PMC10674902/ /pubmed/38004236 http://dx.doi.org/10.3390/nu15224841 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Eroglu, Melike Nur Rodríguez-Longobardo, Celia Ramírez-Adrados, Ana Colina-Coca, Clara Burgos-Postigo, Silvia López-Torres, Olga Fernández-Elías, Valentín E. The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title | The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title_full | The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title_fullStr | The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title_full_unstemmed | The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title_short | The Effects of 24-h Fasting on Exercise Performance and Metabolic Parameters in a Pilot Study of Female CrossFit Athletes |
title_sort | effects of 24-h fasting on exercise performance and metabolic parameters in a pilot study of female crossfit athletes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674902/ https://www.ncbi.nlm.nih.gov/pubmed/38004236 http://dx.doi.org/10.3390/nu15224841 |
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