The Official journal of the China Association of Rehabilitation of Disabled Persons and the 88th Hospital of PLA

Composite Impact Factor:

0. 948 (2015)

Total citation frequency: 3868 (2015)


ISSN 1005-8478

CN 37-1247/R

Comparison of single degree of freedom myoelectric hand with true limb for guidance of amputee rehabilitation

Author : CHEN Yan-cai, YU Bin, MA Yun-fei, et al.     
Working unit : Department of Traumatology, Nanfang Hospital Affiliated to Nanfang Medical University, Guangzhou 510515, China
Page : 1767-1770
Key words : single degree of freedom myoelectric hand, true limb, mechanics difference, rehabilitation training

Abstract:

Objective

To provide guidance for rehabilitation training of forearm amputee by comparing single degree of freedom myoelectric hand (EMG) with true limb.

Methods

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.

Results

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 (P<0.05) .

Conclusion

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.


summary:
Comparison of single degree of freedom myoelectric hand with true limb for guidance of amputee rehabilitation   
CHEN Yan-cai, YU Bin, MA Yun-fei, et al.
Orthop J Chin,2017,25(19):   1767-1770