Autonomic modulation and its relation with body composition in swimmers

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorRossi, Fabrício E.-
Autor(es): dc.creatorRicci-Vitor, Ana L.-
Autor(es): dc.creatorSabino, Joaõ P.J.-
Autor(es): dc.creatorVanderlei, Luiz C.M.-
Autor(es): dc.creatorFreitas, Ismael F.-
Data de aceite: dc.date.accessioned2025-08-21T17:16:13Z-
Data de disponibilização: dc.date.available2025-08-21T17:16:13Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2014-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1519/JSC.0000000000000344-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/227848-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/227848-
Descrição: dc.descriptionThis study compared autonomic modulation in swimmers and non-Athletes in relation to body composition. A total of 28 athletes with a mean age of 19.7 ± 2.9 years were evaluated who had at least 2 years of swimming training, trained approximately 7,000 m per day, with a frequency of 5 days per week, and who competed at national level. The control group was made up of 21 volunteers (23.0 ± 2.5 years), who did not practice regular physical activity (<2 hours per week). Body composition was estimated using dual-energy x-ray absorptiometry, and autonomic modulation was assessed by heart rate variability (HRV). The results show that there were significant differences in autonomic modulation and body composition between the groups, and that the athletes had a higher overall variability (standard deviation of all normal intervals between consecutive heart beats [SDNN]: 78.1 [72.5-93.5] × 61.1 [56.4-75.7], p = 0.022) and greater autonomic balance (LF/HF: 0.96 [0.88-1.35] × 0.71 [0.56-0.93], p = 0.023), compared with the non-Athletes, respectively. In addition, a moderate and positive relation was obtained between fat-free mass and the square root of the square differences between consecutive heartbeat intervals (RMSSD: r = 0.526, p = 0.004 × r = 0.456, p = 0.038), (SDNN: r = 0.617, p = 0.001 × r = 0.571, p = 0.007) and low frequency (LFms 2: r = 0.517, p = 0.005 × r = 0.600, p = 0.004) in the athletes and non-Athletes, respectively, without a correlation between fat mass (FM). The conclusion is that young highly trained swimmers had lower FM, increased fat-free mass, and better HRV than young adult non-Athletes and suggests that a lower quantity of FM and, especially, a greater fat-free mass (FFM) are linked to better autonomic modulation. Thus, this study could contribute to coaches and trainers establishing greater performance by better autonomic modulation and greater quantity of FFM. ©2014 National Strength and Conditioning Association.-
Descrição: dc.descriptionDepartment of Physical Education, Institute of Bioscience, University Estadual Paulista, Rio-Claro-São-Paulo-
Descrição: dc.descriptionDepartment of Physiotherapy, State University Paulista, Presidente Prudente-
Descrição: dc.descriptionDepartment of Physiology, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto-
Descrição: dc.descriptionDepartment of Physical Education, State University Paulista, Presidente Prudente-
Descrição: dc.descriptionDepartment of Physical Education, Institute of Bioscience, University Estadual Paulista, Rio-Claro-São-Paulo-
Formato: dc.format2047-2053-
Idioma: dc.languageen-
Relação: dc.relationJournal of Strength and Conditioning Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAthletes-
Palavras-chave: dc.subjectAutonomic nervous system-
Palavras-chave: dc.subjectBody fat-
Palavras-chave: dc.subjectMuscle mass-
Título: dc.titleAutonomic modulation and its relation with body composition in swimmers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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