Fig. 3
From: Coordination among the rearfoot, midfoot, and forefoot during walking
New coordination pattern classification. The coupling angle was categorized into four coordination patterns as follows: in-phase with proximal dominancy, in-phase with distal dominancy, anti-phase with distal dominancy, and anti-phase with proximal dominancy. The positive direction (+) represents dorsiflexion (DF), inversion (IN), and adduction (AD). The negative direction (−) represents plantarflexion (PF), eversion (EV), and abduction (AB)