Fig. 3From: Effect of hip joint angle at seat-off on hip joint contact force during sit-to-stand movement: a computer simulation studyPostures at seat-off. The colors magenta, blue, green, and red indicate the top of the trunk, hip joint, knee joint, and ankle joint, respectively. The hip joint height is set to 0.513 m [18]. a All the postures generated at seat-off (2911 variations) and b adopted postures at seat-off (718 variations)Back to article page