Movement difference between Pelvic Stabilization #16 and #17?

Movement difference between Pelvic Stabilization #16 and #17?

• A. #16 extends one leg while #17 lifts one leg toward the ceiling.
• B. #16 uses no jumpboard; #17 uses jumpboard.
• C. #16 uses heavier springs than #17.
• D. #16 focuses on arm work; #17 focuses on neck stiffness.

Answer: (A)

This item centers on how the leg moves while the pelvis stays stable. In one Pelvic Stabilization variation, you extend a leg straight out, focusing on maintaining neutral pelvis and ribcage as the leg lengthens. In the other, you lift a leg toward the ceiling, which changes the hip flexion angle and requires different recruitment to keep the pelvis from tilting or lifting. The core distinction is the movement pattern of the leg: extension versus upward leg lift, with both keeping pelvic stabilization but challenging different ranges and muscle groups. The other options don’t capture this movement difference (equipment like a jumpboard, spring weight, or non-pelvic focus) as the defining contrast.

This item centers on how the leg moves while the pelvis stays stable. In one Pelvic Stabilization variation, you extend a leg straight out, focusing on maintaining neutral pelvis and ribcage as the leg lengthens. In the other, you lift a leg toward the ceiling, which changes the hip flexion angle and requires different recruitment to keep the pelvis from tilting or lifting. The core distinction is the movement pattern of the leg: extension versus upward leg lift, with both keeping pelvic stabilization but challenging different ranges and muscle groups. The other options don’t capture this movement difference (equipment like a jumpboard, spring weight, or non-pelvic focus) as the defining contrast.