System for Quantifying the Functional Strength of the Grip and Pinch Movements

First, the hand measurements of each volunteer were evaluated, followed by the measurement of handgrip strength using the Jamar® dynamometer. And later the tests were performed using the system that contains the 5 devices to quantify the hand strength.

To evaluate the cylindrical grip movement, a door handle was used, which evaluated the full force in the range of motion.

To evaluate the spherical grip movement, a tap was used, which evaluated the full force in the range of motion.

To assess the hook grip movement, a door pull handle was used, which assessed the full force in the range of motion

To evaluate the pulp-pulp pinch movement, a switch was used, which evaluated the full force in the movement of the movement.

To assess the pulp-side pinch movement, a door key was used, which evaluated the full force in the range of motion.