Functional assessment of current upper limb prostheses: An integrated clinical and technological perspective
Patricia Capsi-Morales1, Cristina Piazza1, Lis Sjoberg2
1School of Computation, Information and Technology, Technische Universität München, Garching, Germany.
Plos One
|August 16, 2023
Summary
Bionic upper limb prostheses face high rejection rates due to functionality and control issues. This study quantitatively assesses prosthetic performance in activities of daily living (ADL) using the Assessment of Capacity for Myoelectric Control (ACMC).
Area of Science:
- Biomedical Engineering
- Rehabilitation Technology
- Prosthetics
Background:
- High rejection rates of bionic upper limb prostheses persist despite technological advancements.
- Current evaluations rely heavily on subjective questionnaires, lacking quantitative performance data.
- Existing prostheses often fail to meet user needs regarding functionality, control, and comfort.
Purpose of the Study:
- To quantitatively evaluate the functional performance of upper limb prostheses.
- To compare different prosthetic technologies in activities of daily living (ADL).
- To identify limitations of current devices and inform future prosthetic development.
Main Methods:
- Analysis of video footage from the Cybathlon Powered Arm Prostheses Race (2016 and 2020).
- Utilized the Assessment of Capacity for Myoelectric Control (ACMC) for functional assessment.
- Evaluated performance across various ADL-inspired tasks.
Main Results:
- Commercially available rigid hands excel in dexterous grasping.
- Body-powered prostheses demonstrate superior reliability and convenience in competitive settings.
- Wrist design and control modality significantly impact ADL performance.
Conclusions:
- Quantitative assessment is crucial for evaluating prosthetic effectiveness beyond subjective reports.
- Future research should focus on intuitive multi-degree-of-freedom control, adaptive solutions, and sensory feedback integration.
- Optimizing prosthetic design for both daily living and competitive use requires further investigation.
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