Lower back sags at end range
Anterior core fails under the barbell rollout load.
Overactive muscles
Erector spinaeHip flexors
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗Core · Core
Barbell Rollout (Core)
Coaching cues
- Load a barbell with 25-lb plates; kneel behind it; grip the bar
- Roll forward extending the body — same pattern as an ab wheel
- Keep the lower back neutral; roll only as far as control allows
- Pull back using the abs and lats simultaneously
Common faults 2
Hips sit back to avoid the anti-extension demand
Body retreats toward a child's pose position to reduce the difficulty.
Overactive muscles
Hip flexorsLatissimus dorsi
Corrective work
Foam RollLats↗StretchLat stretch (kneeling overhead)↗