Which group correctly lists the two demands of single limb support?

Which group correctly lists the two demands of single limb support?

• A. Lifting the Foot and Clearing the Toes
• B. Producing Double Limb Support and Toe Extension
• C. Preparing for Heel Contact and Completing Stride Length
• D. Supporting Body Weight in Sagittal/Coronal Planes and Continuing Progression

Answer: (D)

Single limb support requires the body to stay stable on one leg while continuing to move forward. The two demands are: first, supporting body weight in both the sagittal and coronal planes—keeping forward-back balance and side-to-side stability so the pelvis and trunk don’t collapse or tilt. second, continuing progression—advancing the body's center of gravity over the stance leg to propel the movement toward the next step. This combination captures what the stance leg must do during single limb support, which is why that option is the best match. The other options describe actions related to foot clearance, double-support phases, or transitional events, not the core demands of single limb stance.

Single limb support requires the body to stay stable on one leg while continuing to move forward. The two demands are: first, supporting body weight in both the sagittal and coronal planes—keeping forward-back balance and side-to-side stability so the pelvis and trunk don’t collapse or tilt. second, continuing progression—advancing the body's center of gravity over the stance leg to propel the movement toward the next step. This combination captures what the stance leg must do during single limb support, which is why that option is the best match. The other options describe actions related to foot clearance, double-support phases, or transitional events, not the core demands of single limb stance.