Effects of dual-channel functional electrical stimulation on gait performance in patients with hemiparesis

Shmuel Springer, Jean-Jacques Vatine, Ronit Lipson, Alon Wolf, Yocheved Laufer, Shmuel Springer, Jean-Jacques Vatine, Ronit Lipson, Alon Wolf, Yocheved Laufer

Abstract

The study objective was to assess the effect of functional electrical stimulation (FES) applied to the peroneal nerve and thigh muscles on gait performance in subjects with hemiparesis. Participants were 45 subjects (age 57.8 ± 14.8 years) with hemiparesis (5.37 ± 5.43 years since diagnosis) demonstrating a foot-drop and impaired knee control. Thigh stimulation was applied either to the quadriceps or hamstrings muscles, depending on the dysfunction most affecting gait. Gait was assessed during a two-minute walk test with/without stimulation and with peroneal stimulation alone. A second assessment was conducted after six weeks of daily use. The addition of thigh muscles stimulation to peroneal stimulation significantly enhanced gait velocity measures at the initial and second evaluation. Gait symmetry was enhanced by the dual-channel stimulation only at the initial evaluation, and single-limb stance percentage only at the second assessment. For example, after six weeks, the two-minute gait speed with peroneal stimulation and with the dual channel was 0.66 ± 0.30 m/sec and 0.70 ± 0.31 m/sec, respectively (P < 0.0001). In conclusion, dual-channel FES may enhance gait performance in subjects with hemiparesis more than peroneal FES alone.

Figures

Figure 1
Figure 1
The NESS L300Plus.
Figure 2
Figure 2
Effects of FES on gait asymmetry.
Figure 3
Figure 3
Effects of FES on single-limb stance percentage.

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