Technique:

• Posterior pelvic tilt
• Ribs down
• Control movement
• Deep breath out at full extension
• Resist hips rocking sideways
• Resist lower back arch

Progressions:
1) Leg straight back
2) Leg straddle
3) Leg straight back - straddle
4) Alternating arm & leg straight back
5) Alternating arm & leg straddle