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dc.contributor.authorFosstveit, Sindre Herskedal
dc.contributor.authorBerntsen, Sveinung
dc.contributor.authorFeron, Jack
dc.contributor.authorJoyce, Kelsey E.
dc.contributor.authorIvarsson, Andreas
dc.contributor.authorSegaert, Katrien
dc.contributor.authorLucas, Samuel J. E.
dc.contributor.authorLohne-Seiler, Hilde
dc.date.accessioned2025-01-08T11:56:37Z
dc.date.available2025-01-08T11:56:37Z
dc.date.created2024-09-02T13:18:10Z
dc.date.issued2024
dc.identifier.citationFosstveit, S. H., Berntsen, S., Feron, J., Joyce, K. E., Ivarsson, A., Segaert, K., Lucas, S. J. E. & Lohne-Seiler, H. (2024). HIIT at Home: Enhancing Cardiorespiratory Fitness in Older Adults—A Randomized Controlled Trial. Scandinavian Journal of Medicine & Science in Sports, 34 (7).en_US
dc.identifier.issn1600-0838
dc.identifier.urihttps://hdl.handle.net/11250/3171550
dc.description.abstractBackground This study aimed to investigate the effectiveness of a 6-month home-based high-intensity interval training (HIIT) intervention to improve peak oxygen consumption (V̇O2peak) and lactate threshold (LT) in older adults. Methods Two hundred thirty-three healthy older adults (60–84 years; 54% females) were randomly assigned to either 6-month, thrice-weekly home-based HIIT (once-weekly circuit training and twice-weekly interval training) or a passive control group. Exercise sessions were monitored using a Polar watch and a logbook for objective and subjective data, respectively, and guided by a personal coach. The outcomes were assessed using a modified Balke protocol combining V̇O2peak and LT measures. General linear regression models assessed between-group differences in change and within-group changes for each outcome. Results There was a significant between-group difference in the pre-to-post change in V̇O2peak (difference: 1.8 [1.2; 2.3] mL/kg/min; exercise: +1.4 [1.0; 1.7] mL/kg/min [~5%]; control: −0.4 [−0.8; −0.0] mL/kg/min [approximately −1.5%]; effect size [ES]: 0.35). Compared with controls, the exercise group had lower blood lactate concentration (−0.7 [−0.9; −0.4] mmol/L, ES: 0.61), % of peak heart rate (−4.4 [−5.7; −3.0], ES: 0.64), and % of V̇O2peak (−4.5 [−6.1; −2.9], ES: 0.60) at the intensity corresponding to preintervention LT and achieved a higher treadmill stage (% incline) at LT (0.6 [0.3; 0.8]; ES: 0.47), following the intervention. Conclusion This study highlights the effectiveness of a home-based HIIT intervention as an accessible and equipment-minimal strategy to induce clinically meaningful improvements in cardiorespiratory fitness in older adults. Over 6 months, the exercise group showed larger improvements in all outcomes compared with the control group. Notably, the LT outcome exhibited a more pronounced magnitude of change than V̇O2peak.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleHIIT at Home: Enhancing Cardiorespiratory Fitness in Older Adults—A Randomized Controlled Trialen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2024 The Author(s)en_US
dc.subject.nsiVDP::Medisinske Fag: 700::Idrettsmedisinske fag: 850en_US
dc.source.volume34en_US
dc.source.journalScandinavian Journal of Medicine & Science in Sportsen_US
dc.source.issue7en_US
dc.identifier.doihttps://doi.org/10.1111/sms.14694
dc.identifier.cristin2291486
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal