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Figure 4 | Journal of NeuroEngineering and Rehabilitation

Figure 4

From: Muscle activation patterns during walking from transtibial amputees recorded within the residual limb-prosthetic interface

Figure 4

Lower leg EMG activation profiles during 1.0 m/s walking. Tibialis Anterior (TA), Gastrocnemius Medial Head (GASM), Gastrocnemius Lateral Head (GASL). (A) Normalized mean EMG intensity curves for the tibialis anterior and gastrocnemii muscles calculated from forty consecutive strides (1.0 m/s). Control data is the grand mean of twelve control subjects. Maximum mean EMG intensity across the gait cycle is 1.0. One standard deviation above the mean is shown in gray. Vertical lines show average toe-off. Variance-to-signal ratio is shown above each plot in gray. (B) Variance-to-signal ratio of lower leg muscles calculated from 40 consecutive cycles at 1.0 m/s.

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