Fig. 5
Exercise intensity parameters. The velocity values were normalized so that a value equal to 0 corresponds to the minimum forward speed of the tunnel-shaped force-field-based assistance mode (Eq. 1). Bars represent mean values, while error bars represent standard deviations. Statistical differences are represented by * ( \(p<=0.05\)), ** (\(p<=0.01\)) *** (\(p<=0.001\)) and **** (\(p<=0.0001\))