Step 1: Stand in quarter squat position. The hands are between legs at ground level.
Step 2: Push through heels and fully extend body pushing hips forward. Swing arms to full extension above head.
Step 3: Return to starting position in controlled manner.
Tips: Control this movement. Don't just fling the upper body up and down as this will do damage to lower back. Refrain from going into hyperextension by keeping a neutral spine.
Link™ to Exterior: Handle in hands. Hands in middle of stance
Stance: Hip width +1. Bent into quarter squat