What It Is
Moving opposite arm and leg while lying on your back teaches your trunk to stay still. That protects your lower back.
How to Do It
Lie on your back on the floor with arms pointing up and knees bent over your hips. Slowly lower one arm overhead and the opposite leg toward the floor. Bring them back to the start. Switch sides each rep.
Skill Level
Novice. Everyday movements on a stable base. Safe to learn on day one.
Type
Strength. Builds muscle and strength with controlled, resisted movement.
Engagement
Unilateral (Alternating). Each rep alternates between sides.
