The clinical relevance of advanced artificial feedback in the control of a multi-functional myoelectric prosthesis

Table 2 Summary of minimal and maximal forces/apertures^a allowed for clothespins used in the PIN test

Pin color	Min aperture [%]	Max aperture [%]	Aperture window size [%]	Min force [%]	Max force [%]	Force window size [%]
Yellow	33	71	38	7	15	8
Red	33	66	33	13	23	10
Green	33	57	24	23	32	9
Black	33	57	24	35	43	8

^aThe values are relative to the prosthesis’ maximal grip force (70 N) and the clothespins’ maximal aperture (3.2 cm)

ISSN: 1743-0003