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dc.contributor.authorTanskanen, Minna
dc.contributor.authorWesterterp, Klaas
dc.contributor.authorUusitalo, Arja
dc.contributor.authorAtalay, Mustafa
dc.contributor.authorHäkkinen, Keijo
dc.contributor.authorKinnunen, Hannu
dc.contributor.authorKyröläinen, Heikki
dc.date.accessioned2016-02-23T10:37:55Z
dc.date.available2016-02-23T10:37:55Z
dc.date.issued2012
dc.identifier.citationTanskanen, M., Westerterp, K., Uusitalo, A., Atalay, M., Häkkinen, K., Kinnunen, H., & Kyröläinen, H. (2012). Effects of easy-to-use protein-rich energy bar on energy balance, physical activity and performance during 8 days of sustained physical exertion. <em>PLoS One</em>, 7 (10), e47771. <a href="http://dx.doi.org/10.1371/journal.pone.0047771">doi:10.1371/journal.pone.0047771</a>
dc.identifier.otherTUTKAID_52312
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/48898
dc.description.abstractBackground: Previous military studies have shown an energy deficit during a strenuous field training course (TC). This study aimed to determine the effects of energy bar supplementation on energy balance, physical activity (PA), physical performance and well-being and to evaluate ad libitum fluid intake during wintertime 8-day strenuous TC. Methods: Twenty-six men (age 2061 yr.) were randomly divided into two groups: The control group (n = 12) had traditional field rations and the experimental (Ebar) group (n = 14) field rations plus energy bars of 4.1 MJNday21 . Energy (EI) and water intake was recorded. Fat-free mass and water loss were measured with deuterium dilution and elimination, respectively. The energy expenditure was calculated using the intake/balance method and energy availability as (EI/estimated basal metabolic rate). PA was monitored using an accelerometer. Physical performance was measured and questionnaires of upper respiratory tract infections (URTI), hunger and mood state were recorded before, during and after TC. Results: Ebar had a higher EI and energy availability than the controls. However, decreases in body mass and fat mass were similar in both groups representing an energy deficit. No differences were observed between the groups in PA, water balance, URTI symptoms and changes in physical performance and fat-free mass. Ebar felt less hunger after TC than the controls and they had improved positive mood state during the latter part of TC while controls did not. Water deficit associated to higher PA. Furthermore, URTI symptoms and negative mood state associated negatively with energy availability and PA. Conclusion: An easy-to-use protein-rich energy bars did not prevent energy deficit nor influence PA during an 8-day TC. The high content of protein in the bars might have induced satiation decreasing energy intake from field rations. PA and energy intake seems to be primarily affected by other factors than energy supplementation such as mood state.
dc.language.isoeng
dc.publisherPublic Library of Science
dc.relation.ispartofseriesPLoS One
dc.subject.otherenergian saanti
dc.subject.otherenergiankulutus
dc.subject.othervarusmies
dc.subject.otherenergy intake
dc.subject.otherenergy expenditure
dc.subject.otheryoug male
dc.subject.othermilitary
dc.titleEffects of easy-to-use protein-rich energy bar on energy balance, physical activity and performance during 8 days of sustained physical exertion.
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201602231655
dc.contributor.laitosLiikuntabiologian laitosfi
dc.contributor.laitosDepartment of Biology of Physical Activityen
dc.contributor.oppiaineLiikuntafysiologia
dc.contributor.oppiaineValmennus- ja testausoppi
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.identifier.doi10.1371/journal.pone.0047771
dc.date.updated2016-02-23T10:15:05Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerangee47771
dc.relation.issn1932-6203
dc.relation.volume7
dc.type.versionpublishedVersion
dc.rights.copyright© 2012 Tanskanen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/


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© 2012 Tanskanen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License.
Except where otherwise noted, this item's license is described as © 2012 Tanskanen et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License.