• Lie on stomach with palms flat on ground and shoulder width apart
• Push torso up by extending arms as far as you can, comfortably
• Arch back and press tops of thighs to ground, making sure to keep hips on ground
• Hold for 15 seconds; repeat 3 times

Payoff: You’re using your lumbar region to push yourself up, and you are in a fully extended position for a complete low-back stretch.