Repositorio UFRO · Omeka S

Cardiac Autonomic Modulation in Response to Muscle Fatigue and Sex Differences During Consecutive Competition Periods in Young Swimmers: A Longitudinal Study

Primer Autor	Nunez-Espinosa, Cristian
Co-autores	Castillo-Aguilar, Matias Valdes-Badilla, Pablo Herrera-Valenzuela, Tomas Guzman-Munoz, Eduardo Delgado-Floody, Pedro Cristobal Andrade, David Moraes, Michele M. Arantes, Rosa M. E.
Título	Cardiac Autonomic Modulation in Response to Muscle Fatigue and Sex Differences During Consecutive Competition Periods in Young Swimmers: A Longitudinal Study
Editorial	FRONTIERS MEDIA SA
Revista	FRONTIERS IN PHYSIOLOGY
Lenguaje	en
Resumen	Objective: To study the differences in cardiac autonomic modulation in response to muscle fatigue caused by high-intensity exercise during two consecutive competition periods in young swimmers. Methods: Twenty-six competitive swimmers, selected by their training volume, were separated in two groups, females (n = 12 [46%], age: 13.5 +/- 1.4 years) and males (n = 14 [54%], age: 13.9 +/- 1.7 years), aged between 10 and 16 years, were evaluated five times as follow: (i) 21 days before the first competition (t-0), (ii) two days before (t-1, t-3), and (iii) two days after (t-2, t-4) of the first and second competitions. Morphological measurements (body mass, percentage of total body fat and height), blood pressure, power, and resting heart rate variability (RR with Polar band) were recorded before and after Wingate test at each time. Results: Body fat was higher in females compared to males. However, no differences were found in other morphological parameters. An intra-subject analysis grouped by sex in cardiovascular parameters shows longitudinal variations in systolic pressure and mean pressure among females. Additionally, females depicted higher, very low frequency (VLF, which is intrinsically generated by the heart and strongly associated with emotional stress) after physical fatigue compared to males at t-1. Further, before the competition, the high frequency (HF) component of HRV (parasympathetic drive) was higher in males than females at t-0 and t-4. Conclusion: Our data revealed that males displayed greater parasympathetic reactivity after an anaerobic muscle fatigue test during their competition periods. Contrarily, females had a less cardiac autonomic modulation when comparing the pre-post Wingate test after two consecutive competition periods.
Tipo de Recurso	artículo original
doi	10.3389/fphys.2021.769085
Formato Recurso	PDF
Palabras Claves	arterial pressure autonomic nervous system heart rate variability physical exertion swimming HEART-RATE-VARIABILITY EXERCISE RECOVERY ADAPTATION INTENSITY CHILDREN OBESE POWER
Ubicación del archivo	http://dx.doi.org/10.3389/fphys.2021.769085
Categoría OCDE	Fisiología
Materias	presión arterial sistema nervioso autónomo variabilidad de la frecuencia cardíaca esfuerzo físico natación VARIABILIDAD DEL RITMO CARDÍACO EJERCICIO RECUPERACIÓN ADAPTACIÓN INTENSIDAD NIÑOS OBESOS POTENCIA
Disciplinas de la OCDE	Ciencias del Deporte y Acondicionamiento Físico Fisiología Sistema Cardiovascular y Cardiaco
Versión del recurso (Recomendado-único)	version publicada
Tipo de ruta	dorada verde
Access Rights	acceso abierto
Derechos de acceso	acceso abierto
Id de Web of Science	WOS:000881403700001
Título de la cita (Recomendado-único)	Cardiac Autonomic Modulation in Response to Muscle Fatigue and Sex Differences During Consecutive Competition Periods in Young Swimmers: A Longitudinal Study
Identificador del recurso (Mandatado-único)	artículo original
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0