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Fig. 4 | Journal of NeuroEngineering and Rehabilitation

Fig. 4

From: Feasibility of robot-based perturbed-balance training during treadmill walking in a high-functioning chronic stroke subject: a case-control study

Fig. 4

EMG responses following LL-NP/L perturbation. Left box shows responses for the muscles of the left leg (NP/L) while the right box shows responses for the muscles of the right leg (P/R). The left column in each box shows perturbed muscular activity of the individual post-stroke prior to the training (experimental condition BEFORE_60 – blue line) along with the unperturbed muscular activity (green line). The middle column in each box shows perturbed muscular activity of the individual post-stroke after the training (experimental conditions AFTER_60 – blue line and AFTER_90 – red line) along with the unperturbed muscular activity (green line). The right column in each box shows perturbed muscular activity of the control participant (experimental conditions CONTROL_60 – blue line and CONTROL_90 – red line) along with the unperturbed muscular activity (green line). Half of the stride prior to and two and a half strides following the perturbation commencement are shown. Stride is defined as the period between two consecutive left-foot contacts. The trajectories displayed show mean values and standard deviations of twenty balancing responses while, for clarity, only the mean values of twenty blocks of three consecutive strides of unperturbed walking are shown. Underneath each column, six consecutive stance phases of both legs are schematically indicated to enable easier cross-referencing with other figures

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