Fard, B. (2013) Wrist motions in upper limb prosthesis design: a pilot study. thesis, Medicine.
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Abstract
Background: Technological advancements in the design of myoelectric (ME) prostheses of the upper extremity (UE) have mainly focused on the ME hand component; motions of the wrist have been largely neglected. Three issues are of importance for optimal use of ME devices: actual functionality of the prosthesis, chronic pain in unaffected body segments due to prosthetic use and potential for overuse injuries. Normal motion patterns are optimal with regard to these issues. When a segment of the UE is lost, its function is expected to be compensated elsewhere in the limb. The current study focuses on the potential benefits of wrist motions in the UE in terms of reduction of compensatory motions. Method: Artificial restriction of wrist motions using wrist and forearm splints, was applied in eight able bodied participants. The motion trajectories for the dominant UE were recorded and analysed using an opto-electric motion capture device, during four Activities of Daily Living (ADL) tasks. Results: Compared to the free wrist, restriction of wrist flexion-extension was found to be associated with increased Range of Motion (ROM) of shoulder elevation angles during a door handle task. For a drinking task, displacement of a crate task and rising from a chair task, no statistically significant increases in ROM for shoulder angles were identified. Discussion: Several methodological issues may have contributed to the negative results: mainly the low sample size, inadequacy of using splints for artificial restriction of wrist motions, equalizing of the starting positions during ADL tasks and testing of the three shoulder angles as separate variables.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Faculty Supervisor: and Sluis, Prof. Dr. C. K. Van der and Department of Rehabilitation Medicine and UMCG |
| Supervisor name: | External Supervisor: and Bongers, Dr. R.M. and Centre for Human Movement Sciences and UMCG |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 11:00 |
| Last Modified: | 25 Jun 2020 11:00 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2023 |
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