Näytä suppeat kuvailutiedot

dc.contributor.authorMishica, Christina
dc.contributor.authorKyröläinen, Heikki
dc.contributor.authorHynynen, Esa
dc.contributor.authorNummela, Ari
dc.contributor.authorHolmberg, Hans-Christer
dc.contributor.authorLinnamo, Vesa
dc.date.accessioned2021-10-04T10:49:17Z
dc.date.available2021-10-04T10:49:17Z
dc.date.issued2021
dc.identifier.citationMishica, C., Kyröläinen, H., Hynynen, E., Nummela, A., Holmberg, H.-C., & Linnamo, V. (2021). Relationships between Heart Rate Variability, Sleep Duration, Cortisol and Physical Training in Young Athletes. <i>Journal of Sports Science and Medicine</i>, <i>20</i>(4), 778-788. <a href="https://doi.org/10.52082/jssm.2021.778" target="_blank">https://doi.org/10.52082/jssm.2021.778</a>
dc.identifier.otherCONVID_101310044
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/78006
dc.description.abstractThe aims of the current study were to examine the relationships between heart rate variability (HRV), salivary cortisol, sleep duration and training in young athletes. Eight athletes (16 ± 1 years) were monitored for 7 weeks during training and competition seasons. Subjects were training for endurance-based winter sports (cross-country skiing and biathlon). Training was divided into two zones (K1, easy training and K2, hard training). Heart rate and blood lactate during submaximal running tests (SRT), as well as cortisol, sleep duration and nocturnal HRV (RMSSD), were determined every other week. HRV and cortisol levels were correlated throughout the 7-week period (r = -0.552, P = 0.01), with the strongest correlation during week 7 (r = -0.879, P = 0.01). The relative changes in K1 and HRV showed a positive correlation from weeks 1-3 (r = 0.863, P = 0.006) and a negative correlation during weeks 3-5 (r = -0.760, P = 0.029). The relative change in sleep during weeks 1-3 were negatively correlated with cortisol (r = -0.762, P = 0.028) and K2 (r = -0.762, P = 0.028). In conclusion, HRV appears to reflect the recovery of young athletes during high loads of physical and/or physiological stress. Cortisol levels also reflected this recovery, but significant change required a longer period than HRV, suggesting that cortisol may be less sensitive to stress than HRV. Moreover, our results indicated that during the competition season, recovery for young endurance athletes increased in duration and additional sleep may be beneficial.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherDepartment of Sports Medicine, Medical Faculty of Uludag University
dc.relation.ispartofseriesJournal of Sports Science and Medicine
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherrecovery
dc.subject.otherendurance training
dc.subject.otherphysiological stress
dc.subject.otherindividual adaptations
dc.subject.othersubmaximal tests
dc.subject.otherautonomic nervous system
dc.titleRelationships between Heart Rate Variability, Sleep Duration, Cortisol and Physical Training in Young Athletes
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202110045060
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineLiikuntafysiologiafi
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineExercise Physiologyen
dc.contributor.oppiaineBiomechanicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange778-788
dc.relation.issn1303-2968
dc.relation.numberinseries4
dc.relation.volume20
dc.type.versionpublishedVersion
dc.rights.copyright© 2021 Journal of Sports Science and Medicine
dc.rights.accesslevelopenAccessfi
dc.subject.ysokestävyysharjoittelu
dc.subject.ysopalautuminen
dc.subject.ysoautonominen hermosto
dc.subject.ysonuoret
dc.subject.ysofyysinen rasitus
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p7676
jyx.subject.urihttp://www.yso.fi/onto/yso/p337
jyx.subject.urihttp://www.yso.fi/onto/yso/p15872
jyx.subject.urihttp://www.yso.fi/onto/yso/p11617
jyx.subject.urihttp://www.yso.fi/onto/yso/p23889
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.52082/jssm.2021.778
jyx.fundinginformationThe Amer Cultural Foundation, Finland, supported this work.
dc.type.okmA1


Aineistoon kuuluvat tiedostot

Thumbnail

Aineisto kuuluu seuraaviin kokoelmiin

Näytä suppeat kuvailutiedot

CC BY-NC-ND 4.0
Ellei muuten mainita, aineiston lisenssi on CC BY-NC-ND 4.0