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dc.contributor.authorVaara, Jani P.
dc.contributor.authorVasankari, Tommi
dc.contributor.authorWyss, Thomas
dc.contributor.authorPihlainen, Kai
dc.contributor.authorOjanen, Tommi
dc.contributor.authorRaitanen, Jani
dc.contributor.authorVähä-Ypyä, Henri
dc.contributor.authorKyröläinen, Heikki
dc.date.accessioned2021-01-28T07:53:40Z
dc.date.available2021-01-28T07:53:40Z
dc.date.issued2020
dc.identifier.citationVaara, J. P., Vasankari, T., Wyss, T., Pihlainen, K., Ojanen, T., Raitanen, J., Vähä-Ypyä, H., & Kyröläinen, H. (2020). Device-Based Measures of Sedentary Time and Physical Activity Are Associated With Physical Fitness and Body Fat Content. <i>Frontiers in Sports and Active Living</i>, <i>2</i>, Article 587789. <a href="https://doi.org/10.3389/fspor.2020.587789" target="_blank">https://doi.org/10.3389/fspor.2020.587789</a>
dc.identifier.otherCONVID_47866545
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/73869
dc.description.abstractIntroduction/Purpose: Physical activity and sedentary time may associate with physical fitness and body composition. Yet, there exists some observational studies that have investigated the associations of device-based measures of sedentary time and physical activity (PA) with cardiorespiratory fitness (CRF) and body composition but associations with muscular fitness (MF) are less studied. Methods: Objective sedentary time and physical activity was measured by a hip worn accelerometer from 415 young adult men (age: mean 26, standard deviation 7 years). Cardiorespiratory fitness (VO2max) (CRF) was determined using a graded cycle ergometer test until exhaustion. Maximal force of lower extremities was measured isometrically and lower body power was assessed using standing long jump (MF). Body composition was determined with bioimpedance method. Single and compositional approach was used in regression analysis. Results: Mean sedentary time was 707 (standard deviation 133) minutes per day (77 ± 8% of the wear time). Volumes of all PA intensities were positively associated with CRF and associations showed linearly increasing magnitudes with higher intensities in single regression models adjusted for age and smoking (p < 0.001). Similarly, PA intensities were positively associated with lower body MF, however, with weaker associations (p < 0.005). After further adjustment for resistance training, the associations remained significant. The associations of the relative distribution of time within sedentary behavior (SB), light intensity PA (LPA) and moderate-to-vigorous PA (MVPA) behaviors as a whole with using compositional analysis further revealed that within the composition MVPA and SB were positively associated with CRF and MF (p < 0.001), while LPA was not. In addition, within the composition, accumulated PA bouts lasting more than 3 min were consistently associated with CRF and MF, and with all body composition variables (p < 0.001), while sedentary time was associated with body fat percentage (p < 0.001). Conclusion: Promoting physical activity and reducing sedentary time may have positive influence on physical fitness and body fat content, and thereby may offer positive health effects. Physical activity of higher intensities may offer greater benefits.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherFrontiers Media
dc.relation.ispartofseriesFrontiers in Sports and Active Living
dc.rightsCC BY 4.0
dc.subject.otherBMI-body mass index
dc.subject.othercardiorespiratory fitness
dc.subject.othermuscular fitness
dc.subject.otherobjective physical activity
dc.subject.othersedentary time
dc.subject.otherwaist circumference
dc.titleDevice-Based Measures of Sedentary Time and Physical Activity Are Associated With Physical Fitness and Body Fat Content
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202101281328
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineLiikuntafysiologiafi
dc.contributor.oppiaineExercise Physiologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2624-9367
dc.relation.volume2
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 Vaara, Vasankari, Wyss, Pihlainen, Ojanen, Raitanen, VähäYpyä and Kyröläinen
dc.rights.accesslevelopenAccessfi
dc.subject.ysofyysinen aktiivisuus
dc.subject.ysopainoindeksi
dc.subject.ysolihaskunto
dc.subject.ysokehonkoostumus
dc.subject.ysofyysinen kunto
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p23102
jyx.subject.urihttp://www.yso.fi/onto/yso/p21142
jyx.subject.urihttp://www.yso.fi/onto/yso/p7382
jyx.subject.urihttp://www.yso.fi/onto/yso/p26989
jyx.subject.urihttp://www.yso.fi/onto/yso/p7384
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.3389/fspor.2020.587789
jyx.fundinginformationThe present study was funded by National Defence Foundation, Finland; Support Foundation of the Finnish Defence Forces; The Scientific Advisory Board for Defence, Finland.
dc.type.okmA1


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