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Agreement Between a Wristwatch and a Free Optical Sensor with a Chest Strap in Measuring HR Variations During Front Crawl Swimming

datacite.subject.fosCiências Sociais::Outras Ciências Sociais
datacite.subject.sdg04:Educação de Qualidade
dc.contributor.authorBartolomeu, Raúl Filipe
dc.contributor.authorSilva, Vasco
dc.contributor.authorPereira, Ana
dc.contributor.authorMorais, Gonçalo
dc.contributor.authorSokołowski, Kamil
dc.contributor.authorStrzała, Marek
dc.contributor.authorMorais, J. E.
dc.contributor.authorTeixeira, José Eduardo
dc.date.accessioned2025-07-02T14:56:51Z
dc.date.available2025-07-02T14:56:51Z
dc.date.issued2025
dc.description.abstractWearables with optical sensors for heart rate (HR) measurement are widely available in the market. However, their accuracy in water is still underexplored. The aim of the present study was to test the agreement of two different devices for HR monitoring with a chest strap while swimming at different intensities. Twenty male and ten female subjects (mean 19.6 ± 0.7 years old, 173.3 ± 5.4 cm, and 67.1 ± 6.6 kg) performed an intermittent progressive protocol of 3 × 30 s tethered front crawl swimming followed by a 1 min rest period. A chest strap, a wristwatch, and a multi-site optical sensor placed at the temple were used simultaneously. A strong association, an excellent intra-class correlation, and a low mean bias were denoted (R2 = 0.85, ICC = 0.94, b = −1) between HRchest vs. HRtemple. Both indicators increased throughout the test, denoting an increase in accuracy from light to vigorous exercise intensity. HRchest and HRwatch showed a moderate association for the whole test (R2 = 0.23) but a weak association, a poor consistency, and a high mean bias stepwise (0.01 ≤ R2 ≤ 0.06, 0.03 ≤ ICC ≤ 0.42, −48.1 ≤ b≤ −16.1). During swimming, the HR values from the temple showed a better agreement with the chest strap than those from the wristwatch. The temple reading accuracy might be enhanced by using the device during the dryland warm-up routinepor
dc.identifier.citationBartolomeu, Raúl Filipe; Silva, Vasco; Pereira, Ana; Morais, Gonçalo; Sokołowski, Kamil; Strzała, Marek; Morais, J.E.; Teixeira, José Eduardo (2025). Agreement Between a Wristwatch and a Free Optical Sensor with a Chest Strap in Measuring HR Variations During Front Crawl Swimming. Applied Sciences. eISSN 2076-3417. 15:11, p. 1-13
dc.identifier.doi10.3390/app15115848
dc.identifier.eissn2076-3417
dc.identifier.urihttp://hdl.handle.net/10198/34636
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectWearable
dc.subjectHeart rate
dc.subjectSwimming
dc.subjectIntensity
dc.subjectAccuracy
dc.titleAgreement Between a Wristwatch and a Free Optical Sensor with a Chest Strap in Measuring HR Variations During Front Crawl Swimmingpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13
oaire.citation.issue11
oaire.citation.startPage1
oaire.citation.titleApplied Sciences
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameBartolomeu
person.familyNameMorais
person.givenNameRaúl Filipe
person.givenNameJ. E.
person.identifierhttps://scholar.google.com/citations?user=p0jD4K0AAAAJ&hl=pt-PT
person.identifier867179
person.identifier.ciencia-idE911-5005-D200
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.orcid0000-0001-8557-5257
person.identifier.orcid0000-0002-6885-0648
relation.isAuthorOfPublication418a17c8-6b8b-4a8e-822b-e814bd7276e4
relation.isAuthorOfPublication80b13e62-254d-4d46-ad90-8b509ab523a8
relation.isAuthorOfPublication.latestForDiscovery418a17c8-6b8b-4a8e-822b-e814bd7276e4

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