68.在步態週期中,腳趾離地(toe off)時,足部的關節位置為何?
(A)中跗關節旋後(midtarsal supination),蹠趾關節伸直(metatarsophalangeal
hyperextension)
(B)中跗關節旋後(midtarsal supination),蹠趾關節屈曲(metatarsophalangeal flexion)
(C)中跗關節旋前(midtarsal pronation),蹠趾關節伸直(metatarsophalangeal
hyperextension)
(D)中跗關節旋前(midtarsal pronation),蹠趾關節屈曲(metatarsophalangeal flexion)