The effects of dual-channel functional electrical stimulation on stance phase sagittal kinematics in patients with hemiparesis

作者：Springer Shmuel; Vatine Jean Jacques; Wolf Alon; Laufer Yocheved^*

来源：Journal of Electromyography and Kinesiology, 2013, 23(2): 476-482.

DOI：10.1016/j.jelekin.2012.10.017

• Gait
• Kinematics
• Hemiparesis
• Functional electrical stimulation (FES)

Sixteen subjects (aged 54.2 +/- 14.1 years) with hemiparesis (7.9 +/- 7.1 years since diagnosis) demonstrating a foot-drop and hamstrings muscle weakness were fitted with a dual-channel functional electrical stimulation (FES) system activating the dorsiflexors and hamstrings muscles. Measurements of gait performance were collected after a conditioning period of 6 weeks, during which the subjects used the system throughout the day. Gait was assessed with and without the dual-channel FES system, as well as with peroneal stimulation alone. Outcomes included lower limb kinematics and the step length taken with the non-paretic leg. Results with the dual-channel FES indicate that in the subgroup of subjects who demonstrated reduced hip extension but no knee hyperextension (n = 9), hamstrings FES increased hip extension during terminal stance without affecting the knee. Similarly, in the subgroup of subjects who demonstrated knee hyperextension but no limitation in hip extension (n = 7), FES restrained knee hyperextension without having an impact on hip movement. Additionally, step length was increased in all subjects. The peroneal FES had a positive effect only on the ankle. The results suggest that dual-channel FES for the dorsiflexors and hamstrings muscles may affect lower limb control beyond that which can be attributed to peroneal stimulation alone.

• 出版日期2013-4