Graduate Research Assistant University of Michigan University of Michigan Ann Arbor, Michigan, United States
This study compared a novel Adaptive Grasp Force (AGF) terminal device to standard Hosmer hooks with low and high grip strength. One non-amputee participant used each device during three functional assessments: Clothespin Relocation Test (CRT), SHAP Light, and SHAP ADL's. The AGF enabled more task completions than the low-force Hosmer but fewer than the high-force version, with similar CRT times, slightly faster SHAP Light performance, and faster SHAP ADL performance for the high-force Hosmer. Workload and effort ratings were highest for the AGF, though it was tested first, suggesting a training effect. Overall, adjustable grasp force shows promise but may require additional training to realize its benefits.
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