Which balance strategy is used when the base of support is lost and a step is taken to regain balance?

Which balance strategy is used when the base of support is lost and a step is taken to regain balance?

• A. Stepping
• B. Weight shift
• C. Suspension
• D. Hip

Answer: (A)

When balance is lost, the body often needs to reestablish a new base of support quickly. Taking a step to place a foot farther in the direction of the perturbation enlarges the base of support under the center of mass, re-centering it over this new support area. This stepping response is specifically used for recovering stance when the existing base of support can no longer contain the center of mass. Shifting weight within the current base won’t help once the base is lost, and the hip or suspension strategies address smaller perturbations or different mechanisms, not reestablishing a new base after loss. So the stepping strategy is the correct choice.

When balance is lost, the body often needs to reestablish a new base of support quickly. Taking a step to place a foot farther in the direction of the perturbation enlarges the base of support under the center of mass, re-centering it over this new support area. This stepping response is specifically used for recovering stance when the existing base of support can no longer contain the center of mass. Shifting weight within the current base won’t help once the base is lost, and the hip or suspension strategies address smaller perturbations or different mechanisms, not reestablishing a new base after loss. So the stepping strategy is the correct choice.