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dc.contributor.authorNummela, Ari
dc.contributor.authorHynynen, Esa
dc.contributor.authorKaikkonen, Piia
dc.contributor.authorRusko, Heikki
dc.date.accessioned2016-07-04T04:46:01Z
dc.date.available2016-07-04T04:46:01Z
dc.date.issued2016
dc.identifier.citationNummela, A., Hynynen, E., Kaikkonen, P., & Rusko, H. (2016). High-intensity endurance training increases nocturnal heart rate variability in sedentary participants. <i>Biology of Sport</i>, <i>33</i>(1), 7-13. <a href="https://doi.org/10.5604/20831862.1180171" target="_blank">https://doi.org/10.5604/20831862.1180171</a>
dc.identifier.otherCONVID_25614123
dc.identifier.otherTUTKAID_69541
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/50695
dc.description.abstractThe effects of endurance training on endurance performance characteristics and cardiac autonomic modulation during night sleep were investigated during two 4-week training periods. After the first 4-week training period (3 x 40 min per week, at 75% of HRR) the subjects were divided into HIGH group (n = 7), who performed three high-intensity endurance training sessions per week; and CONTROL group (n = 8) who did not change their training. An incremental treadmill test was performed before and after the two 4-week training periods. Furthermore, nocturnal RR-intervals were recorded after each training day. In the second 4-week training period HIGH group increased their VO2max (P = 0.005) more than CONTROL group. At the same time, nocturnal HR decreased (P = 0.039) and high-frequency power (HFP) increased (P = 0.003) in HIGH group while no changes were observed in CONTROL group. Furthermore, a correlation was observed between the changes in nocturnal HFP and changes in VO2max during the second 4-week training period (r = 0.90, P < 0.001). The present study showed that the increased HFP is related to improved VO2max in sedentary subjects suggesting that nocturnal HFP can provide a useful method in monitoring individual responses to endurance training.
dc.language.isoeng
dc.publisherInstitute of Sport in Warsaw
dc.relation.ispartofseriesBiology of Sport
dc.subject.otherdistance running
dc.subject.otherendurance performance
dc.subject.otherheart rate variability
dc.titleHigh-intensity endurance training increases nocturnal heart rate variability in sedentary participants
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201607013454
dc.contributor.laitosLiikuntabiologian laitosfi
dc.contributor.laitosDepartment of Biology of Physical Activityen
dc.contributor.oppiaineValmennus- ja testausoppifi
dc.contributor.oppiaineScience of Sport Coaching and Fitness Testingen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-07-01T12:15:56Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange7-13
dc.relation.issn0860-021X
dc.relation.numberinseries1
dc.relation.volume33
dc.type.versionpublishedVersion
dc.rights.copyright© the Authors, 2016. This is an open access article published by Institute of Sport in Warsaw.
dc.rights.accesslevelopenAccessfi
dc.subject.ysoautonominen hermosto
jyx.subject.urihttp://www.yso.fi/onto/yso/p15872
dc.relation.doi10.5604/20831862.1180171


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