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Use of wearable technology for performance assessment: a validation study.

Enrica Papi1, Denise Osei-Kuffour1, Yen-Ming A Chen2

  • 1Department of Surgery and Cancer, Imperial College London, London, UK.

Medical Engineering & Physics
|May 5, 2015
PubMed
Summary

Wearable sensors can objectively measure performance during osteoarthritis rehabilitation exercises, potentially improving patient adherence. Novel sensors integrated into clothing and placed in pockets are validated for this purpose.

Keywords:
AccelerationExerciseOsteoarthritisPerformanceRehabilitationWearable sensor

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Area of Science:

  • Biomedical Engineering
  • Rehabilitation Science
  • Wearable Technology

Background:

  • Osteoarthritis prevalence is rising globally, yet patient compliance with rehabilitation programs is low.
  • Objective performance monitoring is needed to motivate adherence to rehabilitation.
  • Wearable sensors offer a potential solution for objective performance assessment.

Purpose of the Study:

  • To investigate the efficacy of wearable sensors for objective performance measurement in osteoarthritis rehabilitation.
  • To evaluate a novel attachable sensor integrated into clothing and inertial measurement units (IMUs) at the waist and thigh.
  • To assess the potential of these sensors as motivators for rehabilitation compliance.

Main Methods:

  • Fourteen healthy volunteers performed exercises from a knee osteoarthritis rehabilitation program.
  • Exercises included the five times sit-to-stand test and treadmill walking at various speeds.
  • Three wearable sensors (novel integrated sensor, waist IMU, thigh IMU) were tested against motion capture and an instrumented treadmill.

Main Results:

  • All three sensors demonstrated high correlation (r(2) > 0.7) and agreement with gold standards.
  • The novel wearable sensor effectively monitored exercise tasks, comparable to IMUs (ICC > 0.95).
  • Functional sensor placement, such as in a pocket, proved valid for performance monitoring.

Conclusions:

  • Wearable technologies show significant potential for assessing subject performance during rehabilitation exercises.
  • Functional and integrated sensor solutions can enhance user acceptance and adherence.
  • Objective data from wearable sensors may serve as a motivator to improve osteoarthritis rehabilitation outcomes.