Comments on “Validation of an accelerometer-based method to measure the use of manual wheelchairs” by Sonenblum et al. Med Eng Phys 2012; 34(6):781–6

Elaine H. Coulter, Philippa Dall, Lynn Rochester, Jon Hasler, Malcolm Granat

Research output: Contribution to journalLetter

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Abstract

We were surprised in this article by Sonenblum et al. [1] at the lack of comparison with previously published work. We have previously validated this technique [2] using a tri-axial accelerometer attached to the wheel of the wheelchair, and processing the data in an almost identical manner to that of Sonenblum et al. except with regard to smoothing the signal. We used change in angle between successive sampling points to indicate movement, and then smoothed the signal by defining a minimum duration of 1 s for movement and non-movement periods.
Original languageEnglish
Pages (from-to)555-557
Number of pages3
JournalMedical Engineering and Physics
Volume35
Issue number4
DOIs
Publication statusPublished - Apr 2013

Keywords

  • wheelchair use
  • physical activity
  • measurement
  • criticism
  • accelerometer

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