The document discusses the phases of the gait cycle. It is divided into the stance phase and the swing phase. The stance phase accounts for 60% of the gait cycle and occurs when the foot is in contact with the ground, from initial heel strike through toe off. The swing phase accounts for the remaining 40% and occurs when the foot is not in contact with the ground, from toe off through foot strike. It describes the gait cycle in phases including early, mid, and late swing.