Figure 4From: Control of thumb force using surface functional electrical stimulation and muscle load sharingForce vector map determination. Force map data in subsequent force map measurements ('Start’ and 'End’ of experiment) for all (H)ealthy subjects and all (S)troke subjects. Grey arrows indicate maximal force for each muscle, obtained from the initialization procedure and the average movement direction. Axes were omitted for clarity, however the axes scaling was the same in all sub figures.Back to article page