In gait analysis, a full stride is defined as the interval from one heel strike to the next heel strike on the same foot.

In gait analysis, a full stride is defined as the interval from one heel strike to the next heel strike on the same foot.

• A. Heel strike to heel strike
• B. Toe off to toe off
• C. Foot flat to foot flat
• D. Stance phase to swing phase

Answer: (A)

In gait analysis, a stride is the complete cycle of movement for one leg, starting with heel strike of that leg and ending with the next heel strike of the same leg. This captures the entire sequence from initial ground contact, through the stance and swing phases, back to ground contact again. That’s why heel strike to heel strike is the correct interval—it marks the full loop of one leg’s motion. Other intervals don’t cover the entire cycle: toe off to toe off starts and ends at toe-off events, not the ground-contact moment; foot flat to foot flat focuses on a portion of stance, not the whole cycle; and stance phase to swing phase describes a phase change within the cycle rather than the full stride.

In gait analysis, a stride is the complete cycle of movement for one leg, starting with heel strike of that leg and ending with the next heel strike of the same leg. This captures the entire sequence from initial ground contact, through the stance and swing phases, back to ground contact again. That’s why heel strike to heel strike is the correct interval—it marks the full loop of one leg’s motion. Other intervals don’t cover the entire cycle: toe off to toe off starts and ends at toe-off events, not the ground-contact moment; foot flat to foot flat focuses on a portion of stance, not the whole cycle; and stance phase to swing phase describes a phase change within the cycle rather than the full stride.