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Relationships between Workload, Heart Rate Variability, and Performance in a Recreational Endurance Runner.
Boullosa, Daniel; Medeiros, André R; Flatt, Andrew A; Esco, Michael R; Nakamura, Fabio Y; Foster, Carl.
Afiliação
  • Boullosa D; INISA, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil.
  • Medeiros AR; Federal District Education Secretary, Brasilia 72302-505, Brazil.
  • Flatt AA; Biodynamics Laboratory, Department of Health Sciences, Armstrong State University, Savannah, GA 31419, USA.
  • Esco MR; Exercise Physiology Laboratory, Department of Kinesiology, University of Alabama, Tuscaloosa, AL 870312, USA.
  • Nakamura FY; Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, ISMAI, 4475-690 Maia, Portugal.
  • Foster C; Department of Exercise and Sports Science, University of Wisconsin-La Crosse, Lacrosse, WI 54601, USA.
J Funct Morphol Kinesiol ; 6(1)2021 Mar 22.
Article em En | MEDLINE | ID: mdl-33809818
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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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: J Funct Morphol Kinesiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: J Funct Morphol Kinesiol Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça