麻痺上肢の把持力と腕先力の計測と不確かさ評価

抄録

Improvement of sensory motor paralysis due to cerebrovascular disorder can be expected by intensively performing measurement of voluntary movement and sensory feedback at a constant condition force field with high reproducibility. In this research, we develop a system that visually feedbacks the arm and grip force with a controller composed of a single-axis and a 3-axis load cell, and assess uncertainty of the grasping and arm-end force of paralyzed upper limbs. In this report, pilot experiments on evaluating the uncertainty of grip and arm-end force exertion during visually guided circular motion tracing task is conducted by 5 unimpaired subjects. The result shows that a function with variation coefficient and correlation between grip force and arm-end force can be applied to assess uncertainty modification from recovery of paralytic grasping and arm motion coordination.