Calibration and validation of accelerometry to measure physical activity in adult clinical groups: A systematic review

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  • May Silveira Bianchim
    Swansea University
  • Melitta A. McNarry
    Swansea University
  • Lillebeth Larun
    Norwegian Institute of Public Health, Oslo, Norway. claire.glenton@fhi.no.
  • Kelly A. Mackintosh
    Swansea University
A growing body of research calibrating and validating accelerometers to classify physical activity intensities has led to a range of cut-points. However, the applicability of current calibration protocols to clinical populations remains to be addressed. The aim of this review was to evaluate the accuracy of the methods for calibrating and validating of accelerometers to estimate physical activity intensity thresholds for clinical populations. Six databases were searched between March and July to 2017 using text words and subject headings. Studies developing moderate-to-vigorous intensity physical activity cut-points for adult clinical populations were included. The risk of bias was assessed using the health measurement instruments and a specific checklist for calibration studies. A total of 543,741 titles were found and 323 articles were selected for full-text assessment, with 11 meeting the inclusion criteria. Twenty-three different methods for calibration were identified using different models of ActiGraph and Actical accelerometers. Disease-specific cut-points ranged from 591 to 2717 counts·min−1 and were identified for two main groups of clinical conditions: neuromusculoskeletal disorders and metabolic diseases. The heterogeneity in the available clinical protocols hinders the applicability and comparison of the developed cut-points. As such, a mixed protocol containing a controlled laboratory exercise test and activities of daily-life is suggested. It is recommended that this be combined with a statistical approach that allows for adjustments according to disease severity or the use of machine learning models. Finally, this review highlights the generalisation of cut-points developed on healthy populations to clinical populations is inappropriate.
Iaith wreiddiolSaesneg
Rhif yr erthygl101001
CyfnodolynPreventive Medicine Reports
Cyfrol16
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Rhag 2019
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