Verification of a Motion Sensor for Evaluating Physical Activity in COPD Patients

Canadian Respiratory Journal : Journal of the Canadian Thoracic Society
Seiko MiyamotoTadatoshi Suruda

Abstract

Objective evaluation of the physical activity (PA) in patients with chronic obstructive pulmonary disease (COPD) is important. We validated a triaxial accelerometer, Active Style Pro HJA-750C® (HJA), and evaluated the necessary conditions for obtaining reproducible data. The PA measured by HJA was compared with that measured by two already validated accelerometers in 11 patients with COPD (age: 76.6 ± 6.9, FEV1% predicted: 57.6 ± 18.6). Then, the influence of weather and holidays on the PA and the required number of days to obtain repeatability were examined in 21 patients with COPD (age: 73.0 ± 8.0, FEV1% predicted: 58.7 ± 19.0). The PA values measured by HJA and those by DynaPort Move Monitor® (DMM) or Actimarker® (AM) were significantly correlated at all intensities (p=0.024 at ≥4.0 METs by DMM and p < 0.0001 at the rest) except at ≥4.0 METs by AM, though the values measured by HJA were higher than those by AM which was reported to underestimate PA. The durations of PA on rainy days were significantly shorter than those on nonrainy days, but those on holidays were not different from those on weekdays. The values of ICC for 3, 4, or 5 days were higher than 0.8 at all intensities. The PA measured by HJA was correlated with the...Continue Reading

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Citations

Sep 7, 2018·Breathe·Nicolino Ambrosino, Enrica Bertella
Sep 10, 2020·BMC Biomedical Engineering·Kaitlyn R AmmannMarvin J Slepian
Nov 4, 2020·Journal of Clinical Medicine·Yoshiaki Minakata, Seigo Sasaki
Aug 13, 2021·JMIR Research Protocols·Maria Soledad ArietaleanizbeaskoaGonzalo Grandes

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Software Mentioned

SPSS Statistics
DynaPort Move Monitor
DynaPort Activity Monitor®
GraphPad Prism

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