Which event occurs at approximately 50% of the gait cycle?

Which event occurs at approximately 50% of the gait cycle?

• A. Toe off
• B. Heel rise
• C. Opposite initial contact
• D. Tibia vertical

Answer: (C)

During walking, a gait cycle starts with when a foot makes initial contact and ends when that same foot makes initial contact again. The legs are out of phase, so about halfway through one foot’s cycle, the opposite foot is just beginning its own initial contact. That’s why the event occurring around the halfway point is the opposite foot making initial contact. Toe-off happens later in the cycle during late stance, and tibia vertical occurs during mid-stance, not at the halfway mark.

During walking, a gait cycle starts with when a foot makes initial contact and ends when that same foot makes initial contact again. The legs are out of phase, so about halfway through one foot’s cycle, the opposite foot is just beginning its own initial contact. That’s why the event occurring around the halfway point is the opposite foot making initial contact. Toe-off happens later in the cycle during late stance, and tibia vertical occurs during mid-stance, not at the halfway mark.