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  • Inan-Eroglu, Elif1The University of Sydney (författare)

Comparison of a Thigh-Worn Accelerometer Algorithm With Diary Estimates of Time in Bed and Time Asleep: The 1970 British Cohort Study

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • Human Kinetics,2021
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-457543
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-457543URI
  • https://doi.org/10.1123/jmpb.2020-0033DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Background: Thigh-worn accelerometers have established reliability and validity for measurement of free-living physical activity-related behaviors. However, comparisons of methods for measuring sleep and time in bed using the thigh-worn accelerometer are rare. The authors compared the thigh-worn accelerometer algorithm that estimates time in bed with the output of a sleep diary (time in bed and time asleep). Methods: Participants (N = 5,498), from the 1970 British Cohort Study, wore an activPAL device on their thigh continuously for 7 days and completed a sleep diary. Bland–Altman plots and Pearson correlation coefficients were used to examine associations between the algorithm derived and diary time in bed and asleep. Results: The algorithm estimated acceptable levels of agreement with time in bed when compared with diary time in bed (mean bias of −11.4 min; limits of agreement −264.6 to 241.8). The algorithm-derived time in bed overestimated diary sleep time (mean bias of 55.2 min; limits of agreement −204.5 to 314.8 min). Algorithm and sleep diary are reasonably correlated (ρ = .48, 95% confidence interval [.45, .52] for women and ρ = .51, 95% confidence interval [.47, .55] for men) and provide broadly comparable estimates of time in bed but not for sleep time. Conclusions: The algorithm showed acceptable estimates of time in bed compared with diary at the group level. However, about half of the participants were outside of the ±30 min difference of a clinically relevant limit at an individual level.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Huang, Bo-Huei1The University of Sydney (författare)
  • Shepherd, Leah1The University of Sydney (författare)
  • Pearson, Natalie2Loughborough University (författare)
  • Koster, Annemarie3Maastricht University (författare)
  • Palm, Peter,1975-Uppsala universitet,Arbets- och miljömedicin(Swepub:uu)petpa312 (författare)
  • Cistulli, Peter A.1The University of Sydney (författare)
  • Hamer, Mark5University College London (författare)
  • Stamatakis, Emmanuel1The University of Sydney (författare)
  • 1The University of Sydney2Loughborough University (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal for the Measurement of Physical Behaviour: Human Kinetics4:1, s. 60-672575-66052575-6613

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