1
Lie supine on the floor or mat with legs extended straight and arms holding a foam roller or weight across the chest near shoulder height
2
Position hands firmly gripping the roller with elbows slightly bent, feet flat or slightly elevated, core engaged and lower back neutral
3
Slowly lower the extended legs toward the floor while keeping the roller stationary at the chest, maintaining neutral spine and controlled descent of the legs
4
Using abdominal force, drive the legs back up to starting position while pressing the roller upward, exhaling and fully engaging the rectus abdominis at the top