Statistical analysis of myoelectric activity of tibialis anterior during gait

Abstract

spectrum in the frequency domain and the root mean-square of the EMG signal. Results: The clinical data were analysed with Wilcoxon test. After 3 and 6 weeks, the RAGT group improved walking endurance (6 MWT) and balance (Berg Scale) (p<0.05); also gait speed increased without any statistically significant differences. Each patients of RAGT and CT group improved the Quality of life (SF-36) at the end of the training programand threemonths later (p<0.05). The balance improved statistically significant in the RAGT group compared with CT group after 3 weeks and at the end of the therapy (p<0.05). After the treatment, patients were able to deliver an isometric forceof thekneeextensorgreater than thebaselinebutno statistically significant. EMG signal analysis showed no significant changes. Discussion: Robot assisted-gait training is effective on gait speed, endurance and balance. Conventional and robotic training improve quality of life and this effect is long-lasting. As we did not observed any significant difference of the delivered force neither of the EMG parameters after the treatment, the functional improvement seems not due to a modification in muscle output.