forearm amputation - amputatie van de onderarm congenital defect of the forearm - aangeboren gemis van de onderarm myoelectric forearm prosthesis - myoelektrische onderarmprothese
Conditions
Interventions
All subjects will be asked to perform grasping tasks (1-within a standardized protcol using the SHAP test, 2-grasping of delicate daily life objects, 3-grasping of abstract objects varying in weight,
Sponsors
University of Twente
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age between 18 and 65 years; 2. Able to control the experimental setup; 3. Forearm circumference between 24 and 28 cm (healthy subjects); 4. Forearm stump of at least 8 cm (patients); 5. Myoelectric prosthesis user (patients).
Exclusion criteria
Exclusion criteria: 1. Self-reported diminished sense of touch (healthy subjects); 2. Experience with vibrotactile stimulation (healthy subjects); 3. Experience with EMG control of a prosthesis or other device (healthy subjects); 4. Extreme skin problems at the forearm; 5. Mental problems; 6. Hypersensitivity of the skin of the stump (patients).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The performance in the grasping tasks, expressed in: 1. The time needed to perform the tasks; 2. The success in grasping (percentage objects grasped without slippage or breakage); 3. The Index of Functionality (IoF), the main outcome measure of the SHAP test. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. The number of trials needed to successfully hold the object; 2. The force safety marging (difference between the required and the applied grasping force); 3. The percentage correcly identified objects (indication of object stiffness, size and weight). | — |
Contacts
Public ContactH.J.B. Witteveen
Biomedical Signals and Systems Twente University Drienerlolaan 5
Outcome results
None listed