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Título
Relationships between Workload, Heart Rate Variability, and Performance in a Recreational Endurance Runner
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Journal of Functional Morphology and Kinesiology
Número de la revista
1
Datos de la obra
Medeiros, A. R.; Flatt, A. A.; Esco, M. R.; Nakamura, F. Y.; Foster, C.; Boullosa Álvarez, D. A. (2021). Relationships between Workload, Heart Rate Variability, and Performance in a Recreational Endurance Runner. Journal of Functional Morphology and Kinesiology, 6
Editor
MDPI
Fecha
2021
Abstract
[EN] Background: The association between heart rate variability (HRV), training load (TL),
and performance is poorly understood. Methods: A middle-aged recreational female runner was
monitored during a competitive 20-wk macrocycle divided into first (M1) and second mesocycle
(M2) in which best performances over 10 km and 21 km were recorded. Volume (km), session rating
of perceived exertion (sRPE), TL, and monotony (mean TL/SD TL) were the workload parameters
recorded. The root mean square of the successive differences in R-R intervals (RMSSD), its coefficient
of variation (RMSSDcv), and the RMSSD:RR ratio were the HRV parameters monitored. Results:
During M2, RMSSD (p = 0.006) and RMSSD:RR (p = 0.002) were significantly increased, while RR
was significantly reduced (p = 0.017). Significant correlations were identified between monotony
and volume (r = 0.552; p = 0.012), RR (r = 0.447; p = 0.048), and RMSSD:RR (r = −0.458; p = 0.042).
A sudden reduction in RMSSD (from 40.31 to 24.34 ms) was observed the day before the first
symptoms of an influenza. Conclusions: The current results confirm the practicality of concurrent
HRV and sRPE monitoring in recreational runners, with the RMSSD:RR ratio indicative of specific
adaptations. Excessive training volume may be associated to both elevated monotony and reduced
RMSSD:RR. Identification of mesocycle patterns is recommended for better individualization of the
periodization used
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