arm amputation, upper limb prostheses, body powered prosthesis, force perception, cable operation force and displacement arm amputatie, hand prothesen, lichaamsbekrachtigde prothese, kracht perceptie, kabel bedieningskracht en -verplaatsing
Conditions
Interventions
Subjects: A total of 25 subjects with a trans-radial deficiency will participate in the experiment.
Intervention: This experiment is designed to give insight into the quality of control of a body po
Sponsors
Delft University of Technology
Eligibility
Inclusion criteria
Inclusion criteria: In order to be eligible to participate in this study, a subject must meet all of the following criteria: • Amputation level: below elbow / trans radial • Age: older than 18 years • No co-morbidities interfering with study requirements, such as joint diseases, muscle diseases, pulmonary or cardiovascular diseases, or psychiatric diseases.
Exclusion criteria
Exclusion criteria: A potential subject who meets any of the following criteria will be excluded from participation in this study: - younger than 18 years - mentally incompetent - Neurological problems concerning upper extremity or torso - Motor problems concerning upper extremity or torso
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The experiment has two primary outcome measures relating directly to the quality of prosthetic control: 1. Force reproduction error, 2. Force variability. Force reproduction error: The differences between the reference force/displacement and the reproduced force/displacement of the control cable indicates the capability of a subject to perceive and control the required force/displacement. Force variability: the standard deviation of the reproduced force/displacement indicates the capability of the subject to control the required force/displacement. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcome measures of the experiment are 1. Maximum voluntary contraction (MVC) and 2. questionnaires; NASA TLX and body map. MVC: The maximum voluntary contraction indicates the physical capacities of a subject. This indicates design requirements for future prosthesis design. Questionnaires: The Nasa TLX questionnaire and the colored body map documents the subjective feelings of the subject during the experiments. These data might help to explain and interpret the primary outcome measures. | — |
Contacts
Public ContactMona Hichert
Delft University of Technology BioMedical Engineering - 3mE Mekelweg 2
Outcome results
None listed