Trunk rotates instead of laterally flexing
Movement is in the wrong plane; obliques miss the lateral stimulus.
Overactive muscles
Erector spinaeLatissimus dorsi
Corrective work
Foam RollLats↗StretchQL side-bend stretch↗Core · Core
Standing Oblique Crunch
Coaching cues
- Stand; one hand behind the head; other arm at the side
- Crunch laterally — elbow toward the hip on the same side
- Feel the oblique shorten on the working side
- Control the return; don't let gravity drop you
Common faults 2
Hip hikes to assist the crunch
QL and hip abductors generate the lateral movement instead of obliques.
Overactive muscles
Quadratus lumborumTFL
Corrective work
Foam RollQuadratus lumborum↗StretchQL side-bend stretch↗