Gait cycle is the time between two successive foot contacts of the same foot.One gait cycle has two phases:stance phase and swing phase. Normally, cycle time ranges from 0.95s to 1.25s.The two feet should have similar cycle duration.
Stance phase is the portion of the cycle during which the foot is in contact with the ground.This period is from heel strike to toe-off of the same foot. And the stance phase accounts for 60% when walking and accounts for 28%-40% when running. Swing phase is the portion of the cycle during which the foot is not contact with the ground.It accounts for 40% of gait cycle when walking.