1
Stand upright with feet shoulder-width apart, arms at sides or across chest, maintaining neutral spine alignment with shoulders back and core engaged
2
Engage core muscles by drawing navel toward spine, maintain neutral head position looking forward, prepare breathing pattern for controlled movement
3
Slowly lower torso by flexing spine vertebra by vertebra, allowing upper back and shoulders to roll forward toward hips while maintaining controlled descent with core tension throughout
4
Reverse the movement by contracting rectus abdominis to return to standing position, extending spine sequentially from lower to upper back, return to neutral standing posture with shoulders retracted