COM displacement during walking is typically tracked by displacement of what?

COM displacement during walking is typically tracked by displacement of what?

• A. Toes only
• B. Head or torso
• C. Foot and ankle
• D. Hand and wrist

Answer: (B)

Following walking, the best way to gauge how the body's weight moves through space is to track the center of mass, which is most accurately reflected by the head or torso. The torso contains most of the body's mass and moves as a relatively single, coordinated unit, producing a smooth trajectory that mirrors the overall mass center as you walk. In contrast, distal parts like the toes or hands swing independently due to individual joint rotations, so their motion doesn’t represent the global movement of the body's center of mass. So, displacement of the head or trunk serves as the practical proxy for COM displacement during gait.

Following walking, the best way to gauge how the body's weight moves through space is to track the center of mass, which is most accurately reflected by the head or torso. The torso contains most of the body's mass and moves as a relatively single, coordinated unit, producing a smooth trajectory that mirrors the overall mass center as you walk. In contrast, distal parts like the toes or hands swing independently due to individual joint rotations, so their motion doesn’t represent the global movement of the body's center of mass. So, displacement of the head or trunk serves as the practical proxy for COM displacement during gait.