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| Name | Class |
|---|---|
| University of Michigan | OTHER |
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We have developed a novel terminal device for a prosthetic arm that eliminates the functional tradeoffs seen in body-powered voluntary open devices. The primary goal of this study is to validate the performance of the device against the commercial state-of-the-art in upper limb terminal devices.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Novel Prosthetic Hook, then Control Hook (Light Spring), then Control Hook (Heavy Spring) | Experimental | In this arm, participants will first complete the tests with the Novel Prosthetic Hook and then the Control Hook with a light return spring, then the Control Hook with a heavy return spring. |
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| Novel Prosthetic Hook, then Control Hook (Heavy Spring), then Control Hook (Light Spring) | Experimental | In this arm, participants will first complete the tests with the Novel Prosthetic Hook and then the Control Hook with a heavy return spring, then the Control Hook with a light return spring. |
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| Control Hook (Light Spring), then Control Hook (Heavy Spring), then Novel Prosthetic Hook | Experimental | In this arm, participants will first complete the tests with the Control Hook with a light return spring, then the Control Hook with a heavy return spring, and then the Novel Prosthetic Hook. |
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| Control Hook (Heavy Spring), then Control Hook (Light Spring), then Novel Prosthetic Hook | Experimental | In this arm, participants will first complete the tests with the Control Hook with a heavy return spring, then the Control Hook with a light return spring, and then the Novel Prosthetic Hook. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Novel Prosthetic Hook | Device | The Novel Prosthetic Hook is the investigational device that is being studied for its performance as an upper limb terminal device. |
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| Measure | Description | Time Frame |
|---|---|---|
| Modified SHAP Average Completion Time | This is the average task completion time across all tasks performed in a modified version of the Southampton Hand Assessment Protocol (SHAP). The SHAP has been modified in this study to include only the relevant assessments to the prosthetic hooks being tested. A lower average score indicates better performance. | through study completion, an average of 1 day |
| Measure | Description | Time Frame |
|---|---|---|
| Clothespin Relocation Task Average Time | This is a functional hand assessment that measures the time it takes to reposition clothespins of differing stiffnesses. Lower completion times indicate better performance. | through study completion, an average of 1 day |
| Borg Rating of Perceived Exertion (RPE) |
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Inclusion Criteria:
Are between the ages of 18-80 Are proficient in English Able to demonstrate proper functioning and safety of the terminal device
Exclusion Criteria:
Have visual or mental impairments Have history of neurological or musculoskeletal disorders
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Michigan | Ann Arbor | Michigan | 48109 | United States |
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| Control Hook (Light Spring), then Novel Prosthetic Hook, then Control Hook (Heavy Spring) | Experimental | In this arm, participants will first complete the tests with the Control Hook with a light return spring, then the Novel Prosthetic Hook, and then the Control Hook with a heavy return spring, |
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| Control Hook (Heavy Spring), then Novel Prosthetic Hook, then Control Hook (Light Spring) | Experimental | In this arm, participants will first complete the tests with the the Control Hook with a heavy return spring, then Novel Prosthetic Hook, and then the Control Hook with a light return spring. |
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| Control Hook (Light Spring) | Device | The Control Hook is a standard, commercially available prosthetic hook used as a comparison. In this intervention, it is configured with a light return spring. |
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| Control Hook (Heavy Spring) | Device | The Control Hook is a standard, commercially available prosthetic hook used as a comparison. In this intervention, it is configured with a heavy return spring. |
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This is a scale of 0 to 10 with 0 indicated by the participate as a measure of how difficult a task is. |
| through study completion, an average of 1 day |
| NASA Task Load Index | The NASA Task Load Index method assesses work load. The aggregate score reported scales from 0 to 100, where 100 indicates the maximum (hardest) workload. | through study completion, an average of 1 day |