A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Evaluation of nocturnal vs. morning measures of heart rate indices in young athletes (2022)


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


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Mishica, Christina; Kyröläinen, Heikki; Hynynen, Esa; Nummela, Ari; Holmberg, Hans-Christer; Linnamo, Vesa

Lehti tai sarja: PLoS ONE

eISSN: 1932-6203

Julkaisuvuosi: 2022

Ilmestymispäivä: 05.01.2022

Volyymi: 17

Lehden numero: 1

Artikkelinumero: e0262333

Kustantaja: Public Library of Science (PLoS)

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1371/journal.pone.0262333

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/79404


Tiivistelmä

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.


YSO-asiasanat: urheilijat; nuoret; kestävyysjuoksu; kestävyysharjoittelu; syke; uni (lepotila); mittaus; mittauslaitteet


Liittyvät organisaatiot


OKM-raportointi: Kyllä

Raportointivuosi: 2022

Alustava JUFO-taso: 1


Viimeisin päivitys 2022-20-09 klo 13:08