Human-Inspired Reflex to Autonomously Prevent Slip of Grasped Objects Rotated with a Prosthetic Hand

Table 2

The overall average ± standard deviation of each performance metric for each of the four tests.

Performance metric	Without HOF with sorting	Without HOF without sorting	With HOF with sorting	With HOF without sorting
Successful cycles	21.4 ± 5.43	25.6 ± 5.15	30.0 ± 0.00	30.0 ± 0.00
Drop count	1.67 ± 0.778	0.833 ± 0.835	0.000 ± 0.000	0.000 ± 0.000
Break count	4.33 ± 2.77	2.92 ± 2.54	0.167 ± 0.577	0.000 ± 0.000
Sort count	91.4 ± 27.1	—	129 ± 15.2	—
Sort rate	0.819 ± 0.187	—	0.870 ± 0.115	—
Subjective ranking	4.17 ± 1.59	6.33 ± 1.50	8.50 ± 1.00	9.92 ± 0.289