Fall detection from a manual wheelchair: preliminary findings based on accelerometers using machine learning techniques

Libak Abou, Alexander Fliflet, Peter Presti, Jacob J. Sosnoff, Harshal P. Mahajan, Mikaela L. Frechette, Laura A. Rice

Research output: Contribution to journalArticlepeer-review

Abstract

Automated fall detection devices for individuals who use wheelchairs to minimize the consequences of falls are lacking. This study aimed to develop and train a fall detection algorithm to differentiate falls from wheelchair mobility activities using machine learning techniques. Thirty, healthy, ambulatory, young adults simulated falls from a wheelchair and performed other wheelchair-related mobility activities in a laboratory. Neural Network classifiers were used to train the algorithm developed based on data retrieved from accelerometers mounted at the participant’s wrist, chest, and head. Results indicate excellent accuracy to differentiate between falls and wheelchair mobility activities. The sensors mounted at the wrist, chest, and head presented with an accuracy of 100%, 96.9%, and 94.8%, respectively, using data from 258 falls and 220 wheelchair mobility activities. This pilot study indicates that a fall detection algorithm developed in a laboratory setting based on fall accelerometer patterns can accurately differentiate wheelchair-related falls and wheelchair mobility activities. This algorithm should be integrated into a wrist-worn devices and tested among individuals who use a wheelchair in the community.

Original languageEnglish (US)
Pages (from-to)523-531
Number of pages9
JournalAssistive Technology
Volume35
Issue number6
Early online dateFeb 28 2023
DOIs
StatePublished - 2023

Keywords

  • accidental falls
  • activity recognition
  • fall detection
  • wearable sensor
  • wheelchair

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

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