Question

Which option is the correct sequence representing a human walk? 

• A. 2, 4, 3, 1
• B. 4, 3, 2, 1
• C. 3, 1, 2, 4
• D. 4, 1, 2, 3

Hint:

When analyzing a walk cycle, always look for the 'Contact' pose (legs farthest apart, front heel on the ground) as a starting point. Then trace how the body's weight shifts and how the legs move to complete the step. Remember the body goes down after contact and up before the next contact.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
This question requires identifying the correct chronological sequence of key poses in a human walk cycle. A walk cycle is the series of motions the body goes through between the time one foot touches the ground and the time the same foot touches the ground again.
Step 2: Detailed Explanation:
Let's identify each of the four drawings as a specific key pose. A logical starting point for a walk cycle is the 'Contact' pose.
- Image 4: Contact Pose. This is the initial moment a step is taken. The front foot (green) makes contact with the ground, typically with the heel first. The legs are at their maximum stride.
- Image 3: Down/Recoil Pose. Immediately after contact, the body's weight is transferred onto the front (green) leg, which bends at the knee to absorb the shock. The body is at its lowest point in the cycle.
- Image 2: Passing Pose. As the body moves forward, the back (orange) leg swings forward. This image shows the moment the swinging leg passes the stationary, weight-bearing leg.
- Image 1: Up/Push-off Pose. The body is now propelled forward by the standing (green) leg, which rises onto the ball of the foot. The body reaches its highest point in the cycle, just before the other foot (orange) makes contact to begin the next step.
Following this biomechanical progression, the correct sequence starting from the contact pose is:
Contact (4) \(\rightarrow\) Down (3) \(\rightarrow\) Passing (2) \(\rightarrow\) Up (1).
This sequence, 4-3-2-1, represents one complete step, leading into the next contact pose.
Step 3: Final Answer:
The correct sequence representing a human walk is 4, 3, 2, 1.