Accuracy of estimates of step frequency from a wearable gait monitor

Authors Harriët Wittink , Michiel Punt , Franc van der Bent , Roland van Dieën
Published in Journal of mobile technology in medicine
Publication date 1 February 2015
Research groups Lifestyle and Health
Type Article

Summary

The purpose of the study was to assess the accuracy of estimates of step frequency from trunk acceleration data analyzed with commonly used algorithms and time window lengths, at a wide range of gait speeds. Twenty healthy young subjects performed an incremental treadmill protocol from 1 km/h up to 6 km/h, with steps of 1 km/h. Each speed condition was maintained for two minutes. A waist worn accelerometer recorded trunk accelerations, while video analysis provided the correct number of steps taken during each gait speed condition. Accuracy of two commonly used signal analysis methods was examined with several different time windows.

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Language English
Published in Journal of mobile technology in medicine
Year and volume 4 1
ISBN/ISSN URN:ISSN:1839-7808
Key words meetinstrumenten, stapfrequentie
Page range 2-7

Harriët Wittink