To provide guidance for rehabilitation training of forearm amputee by comparing single degree of freedom myoelectric hand （EMG） with true limb.
Thirty forearm amputees admitted into out hospital during January 2015 and January 2016 were selected as the prosthetic group, while 30 healthy volunteers were selected as control group. Heavy pulling test, grip strength test and thumb grasping test were conducted and statistically compared between the two groups.
The lifting time in static heavy pulling test showed no
statistically significant difference between the two groups （P>
0.05） , whereas the pulling strength in the prosthetic group was
significantly higher than the control group （P<0.05） . In the dynamic
heavy pulling test, the lifting time of the prosthetic group was
significantly lower than the control group （P<0.05） .The grip
strength of column object in the prosthetic group was significantly
lower than that of the control group （P<0.05） . Additionally, the
grasp strengths of coins, glass balls and pencil in the prosthetic group
were also significantly lower than those of the control group
Single degree of freedom EMG hand can bear stronger force than the real limb,however, the flexibility and accuracy of fingertip force are significantly inferior to the real limb. Proper guidance to the rehabilitation of forearm amputee is therefore still needed.