Additional file 1: Figure S1. of Effects of handrail hold and light touch on energetics, step parameters, and neuromuscular activity during walking after stroke

Forces exerted on the handrail during the stride cycle during touch (upper graphs) and hold (lower graphs) condition. Stride cycle starts and ends with initial contact of the nonparetic leg. Black line represents the group mean of the ensemble averaged force. Shaded area represents the corresponding standard deviation. Force data were filtered with a 4th order Savitzky-Golay filter with frame size 41