Fig. 6

Gain and phase at two joint angles for the four subjects. The values at 90° are depicted by lines with symbols. Lines with error bars (variance over 3 days measurement) and symbols represent the values at 180°. The values from channel A1A2, A1A3, B1B2 and B1B3 are displayed in sub-figure a, b, c and d, respectively. Lines with symbol rectangular, star, triangle and circle is for S1, S2, S3 and S4, respectively