Evaluation of nocturnal vs. morning measures of heart rate indices in young athletes
Mishica, C., Kyröläinen, H., Hynynen, E., Nummela, A., Holmberg, H.-C., & Linnamo, V. (2022). Evaluation of nocturnal vs. morning measures of heart rate indices in young athletes. PLoS ONE, 17(1), Article e0262333. https://doi.org/10.1371/journal.pone.0262333
Julkaistu sarjassa
PLoS ONETekijät
Päivämäärä
2022Tekijänoikeudet
© 2022 the Authors
Purpose
The purpose of this study was to compare heart rate (HR) and heart rate variability in young endurance athletes during nocturnal sleep and in the morning; and to assess whether changes in these values are associated with changes in submaximal running (SRT) and counter-movement jump (CMJ) performance.
Methods
During a three-week period of similar training, eleven athletes (16 ± 1 years) determined daily HR and heart rate variability (RMSSD) during sleep utilizing a ballistocardiographic device (Emfit QS), as well as in the morning with a HR monitor (Polar V800). Aerobic fitness and power production were assessed employing SRT and CMJ test.
Results
Comparison of the average values for week 1 and week 3 revealed no significant differences with respect to nocturnal RMSSD (6.8%, P = 0.344), morning RMSSD (13.4%, P = 0.151), morning HR (-3.9 bpm, P = 0.063), SRT HR (-0.7 bpm, P = 0.447), SRT blood lactate (4.9%, P = 0.781), CMJ (-4.2%, P = 0.122) or training volume (16%, P = 0.499). There was a strong correlation between morning and nocturnal HRs during week 1 (r = 0.800, P = 0.003) and week 3 (r = 0.815, P = 0.002), as well as between morning and nocturnal RMSSD values (for week 1, r = 0.895, P<0.001 and week 3, r = 0.878, P = 0.001).
Conclusion
This study concluded that HR and RMSSD obtained during nocturnal sleep and in the morning did not differ significantly. In addition, weekly changes in training and performance were small indicating that fitness was similar throughout the 3-week period of observation. Consequently, daily measurement of HR indices during nocturnal sleep provide a potential tool for long-term monitoring of young endurance athletes.
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Julkaisija
Public Library of Science (PLoS)ISSN Hae Julkaisufoorumista
1932-6203Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/103879612
Metadata
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Lisätietoja rahoituksesta
CM received funding for this work. The Amer Cultural Foundation of Finland supported funding for this project.Lisenssi
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