EFFECT OF MULTI-GRIP MYOELECTRIC HANDS ON DAILY ACTIVITIES, PAIN-RELATED DISABILITY AND PROSTHESIS USE COMPARED WITH SINGLE-GRIP PROSTHESES

Authors

  • Cathrine Widehammar
  • Ayako Hiyoshi
  • Kajsa Lidström Holmqvist
  • Helen Lindner
  • Liselotte Hermansson

Abstract

Objective: To evaluate the effect of multi-grip hands on performance of daily activities, pain-related disability and prosthesis use, in comparison to single-grip hands. Design: Single-case AB design. Patients: Nine adults with upper-limb loss participated. All had previous experience of single-grip myoelectric prostheses and were prescribed a prosthesis with multi-grip functions. Methods: To assess the changes in daily activities, pain-related disability and prosthesis use between single-grip and multi-grip prosthetic hands, the Canadian Occupational Performance Measure, Pain Disability Index, and prosthesis wearing time were measured at multiple occasions. Visual assessment of graphs and multi-level linear regression were used to assess changes in the outcome measures, adjusting for xx, yy, and zz. Results: At 6 months' follow-up self-perceived performance and satisfaction scores increased, prosthesis wearing time increased, and pain-related disability reduced in participants with musculoskeletal pain at baseline. On average, 8 of the 11 available grip types were used. Most useful were the power grip, tripod pinch and lateral pinch. Conclusion: The multi-grip hand appears to be associated with higher performance and satisfaction of individually chosen activities, increased prostheses use and lower pain-related disability. A durable single-grip hand may still be needed for heavier physical activities. With structured training a standard two-site electrode control system can be used to operate a multi-grip hand.

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Published

2022-08-09

How to Cite

[1]
C. Widehammar, A. Hiyoshi, K. Lidström Holmqvist, H. Lindner, and L. Hermansson, “EFFECT OF MULTI-GRIP MYOELECTRIC HANDS ON DAILY ACTIVITIES, PAIN-RELATED DISABILITY AND PROSTHESIS USE COMPARED WITH SINGLE-GRIP PROSTHESES”, MEC Symposium, Aug. 2022.

Issue

Section

Clinical Research Studies