Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.23736/S0022-4707.22.13448-1 http://hdl.handle.net/11449/246399 |
Resumo: | BACKGROUND: Prolonged exercise in the heat can promote dehydration, which could impair ammonia metabolism, cognitive-motor performance, and muscle damage. However, exercise heat acclimation induces physiological adaptations that improve performance, metabolism, and cellular protection. This study aimed to evaluate different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage after a race in the heat in acclimated runners. METHODS: Sixteen male amateur endurance runners performed a half marathon race. after the race, the runners were divided into two groups according to their percentage body mass change (Δ% BM): Δ% BM less than 3% (G1%; N.=8) and Δ% BM greater than or equal to 3% (G3%; N.=8). Hydration status, biochemical parameters, and cognitive-motor performance were assessed before and after the race. RESULTS: Blood ammonia concentrations were increased in both G1% (before: 46±26 µmol/L; after: 118±22 µmol/L) and G3% (before: 41±15 µmol/L; after: 108±15 µmol/L) groups. There was an early increase in all markers of muscle damage (creatine kinase [CK], lactate dehydrogenase [LDH], aspartate aminotransferase [AST], and alanine aminotransferase [ALT]) in both groups, but only LDH was greater in the G3% group than in the G1% group. Cognitive-motor performance did not differ between groups. CONCLUSIONS: Dehydration up to ~4% BM loss does not affect blood ammonia concentrations and cognitive-motor performance in acclimated runners. The results also suggest that exercising in the heat induces the early appearance of several markers of muscle damage in acclimated runners regardless of hydration status. |
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Repositório Institucional da UNESP |
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Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runnersAcclimatizationAthletic performanceHeat stress disordersMetabolismBACKGROUND: Prolonged exercise in the heat can promote dehydration, which could impair ammonia metabolism, cognitive-motor performance, and muscle damage. However, exercise heat acclimation induces physiological adaptations that improve performance, metabolism, and cellular protection. This study aimed to evaluate different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage after a race in the heat in acclimated runners. METHODS: Sixteen male amateur endurance runners performed a half marathon race. after the race, the runners were divided into two groups according to their percentage body mass change (Δ% BM): Δ% BM less than 3% (G1%; N.=8) and Δ% BM greater than or equal to 3% (G3%; N.=8). Hydration status, biochemical parameters, and cognitive-motor performance were assessed before and after the race. RESULTS: Blood ammonia concentrations were increased in both G1% (before: 46±26 µmol/L; after: 118±22 µmol/L) and G3% (before: 41±15 µmol/L; after: 108±15 µmol/L) groups. There was an early increase in all markers of muscle damage (creatine kinase [CK], lactate dehydrogenase [LDH], aspartate aminotransferase [AST], and alanine aminotransferase [ALT]) in both groups, but only LDH was greater in the G3% group than in the G1% group. Cognitive-motor performance did not differ between groups. CONCLUSIONS: Dehydration up to ~4% BM loss does not affect blood ammonia concentrations and cognitive-motor performance in acclimated runners. The results also suggest that exercising in the heat induces the early appearance of several markers of muscle damage in acclimated runners regardless of hydration status.Federal University of AlagoasFederal University of SergipeFederal University of BahiaPaulista State UniversityFederal University of UberlândiaPaulista State UniversityFederal University of AlagoasUniversidade Federal de Sergipe (UFS)Universidade Federal da Bahia (UFBA)Universidade Estadual Paulista (UNESP)Universidade Federal de Uberlândia (UFU)Oliveira, Natally M.Sousa Filho, Luis F.França, Thássia C.Camerino, Saulo R.Lima, Rafaela C.Barros Neto, João A.Herculano, Edla A.Araújo, Gustavo G. [UNESP]Prado, Eduardo S.2023-07-29T12:39:55Z2023-07-29T12:39:55Z2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1716-1722http://dx.doi.org/10.23736/S0022-4707.22.13448-1Journal of Sports Medicine and Physical Fitness, v. 62, n. 12, p. 1716-1722, 2022.1827-19280022-4707http://hdl.handle.net/11449/24639910.23736/S0022-4707.22.13448-12-s2.0-85142940088Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Sports Medicine and Physical Fitnessinfo:eu-repo/semantics/openAccess2023-07-29T12:39:55Zoai:repositorio.unesp.br:11449/246399Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:47:30.665995Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
title |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
spellingShingle |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners Oliveira, Natally M. Acclimatization Athletic performance Heat stress disorders Metabolism |
title_short |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
title_full |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
title_fullStr |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
title_full_unstemmed |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
title_sort |
Different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage in acclimated runners |
author |
Oliveira, Natally M. |
author_facet |
Oliveira, Natally M. Sousa Filho, Luis F. França, Thássia C. Camerino, Saulo R. Lima, Rafaela C. Barros Neto, João A. Herculano, Edla A. Araújo, Gustavo G. [UNESP] Prado, Eduardo S. |
author_role |
author |
author2 |
Sousa Filho, Luis F. França, Thássia C. Camerino, Saulo R. Lima, Rafaela C. Barros Neto, João A. Herculano, Edla A. Araújo, Gustavo G. [UNESP] Prado, Eduardo S. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Federal University of Alagoas Universidade Federal de Sergipe (UFS) Universidade Federal da Bahia (UFBA) Universidade Estadual Paulista (UNESP) Universidade Federal de Uberlândia (UFU) |
dc.contributor.author.fl_str_mv |
Oliveira, Natally M. Sousa Filho, Luis F. França, Thássia C. Camerino, Saulo R. Lima, Rafaela C. Barros Neto, João A. Herculano, Edla A. Araújo, Gustavo G. [UNESP] Prado, Eduardo S. |
dc.subject.por.fl_str_mv |
Acclimatization Athletic performance Heat stress disorders Metabolism |
topic |
Acclimatization Athletic performance Heat stress disorders Metabolism |
description |
BACKGROUND: Prolonged exercise in the heat can promote dehydration, which could impair ammonia metabolism, cognitive-motor performance, and muscle damage. However, exercise heat acclimation induces physiological adaptations that improve performance, metabolism, and cellular protection. This study aimed to evaluate different dehydration levels and their impact on blood ammonia, cognitive-motor performance, and muscle damage after a race in the heat in acclimated runners. METHODS: Sixteen male amateur endurance runners performed a half marathon race. after the race, the runners were divided into two groups according to their percentage body mass change (Δ% BM): Δ% BM less than 3% (G1%; N.=8) and Δ% BM greater than or equal to 3% (G3%; N.=8). Hydration status, biochemical parameters, and cognitive-motor performance were assessed before and after the race. RESULTS: Blood ammonia concentrations were increased in both G1% (before: 46±26 µmol/L; after: 118±22 µmol/L) and G3% (before: 41±15 µmol/L; after: 108±15 µmol/L) groups. There was an early increase in all markers of muscle damage (creatine kinase [CK], lactate dehydrogenase [LDH], aspartate aminotransferase [AST], and alanine aminotransferase [ALT]) in both groups, but only LDH was greater in the G3% group than in the G1% group. Cognitive-motor performance did not differ between groups. CONCLUSIONS: Dehydration up to ~4% BM loss does not affect blood ammonia concentrations and cognitive-motor performance in acclimated runners. The results also suggest that exercising in the heat induces the early appearance of several markers of muscle damage in acclimated runners regardless of hydration status. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 2023-07-29T12:39:55Z 2023-07-29T12:39:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.23736/S0022-4707.22.13448-1 Journal of Sports Medicine and Physical Fitness, v. 62, n. 12, p. 1716-1722, 2022. 1827-1928 0022-4707 http://hdl.handle.net/11449/246399 10.23736/S0022-4707.22.13448-1 2-s2.0-85142940088 |
url |
http://dx.doi.org/10.23736/S0022-4707.22.13448-1 http://hdl.handle.net/11449/246399 |
identifier_str_mv |
Journal of Sports Medicine and Physical Fitness, v. 62, n. 12, p. 1716-1722, 2022. 1827-1928 0022-4707 10.23736/S0022-4707.22.13448-1 2-s2.0-85142940088 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Sports Medicine and Physical Fitness |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1716-1722 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129552600268800 |