Neck strains to complete the crunch
SCM and scalenes assist; rectus abdominis is underloaded.
Overactive muscles
SCMScalenesSuboccipitals
Corrective work
Foam RollSuboccipitals (lacrosse ball)↗StretchSCM / scalene stretch↗Core · Core
Suitcase Crunch
Coaching cues
- Supine; arms overhead and legs extended — long body
- Simultaneously bring the knees and elbows together
- Exhale forcefully at the peak; feel the abs compress
- Return to full extension under control — don't crash down
Common faults 2
Lower back crashes to the floor on descent
No eccentric control; anterior core gets no time under tension.
Overactive muscles
Hip flexorsErector spinae
Corrective work
Foam RollHip flexors↗StretchHalf-kneeling hip flexor stretch↗