CoreBW
A simultaneous folding movement where the legs and torso rise together to meet in a V-shape, hands reaching toward the toes, demanding significant rectus abdominis and hip flexor strength through a full range.
Demo: General S&C demo
Sets
3
Reps
10-12
Rest
45s
Contraindications
Flexion-intolerant low back pain — regress to tuck-ups or reverse crunches.Setup
Lie flat on your back, arms extended overhead, legs extended.
Execution
- 1Brace the core and simultaneously lift the legs and torso off the floor
- 2Reach the hands toward the toes, meeting in a V-shape at the top
- 3Keep the legs and torso rising at a matched pace, not one leading dramatically
- 4Pause briefly at the top, touching hands to feet if possible
- 5Lower both halves back to the floor under control
Key cues
- Rise together, legs and torso in sync
- Reach long, don't just crunch
- Control the lowering just as much as the rise
- Exhale hard at the top of the V
Common faults
- Legs and torso rising out of sync (one leading too much)
- Using momentum to fling up instead of controlled flexion
- Not achieving a true V position, just a shallow crunch
- Crashing back down instead of controlling the descent
Tweaks
- Perform a tuck-up (bent knees) as a regression
- Add a weight held between the hands for more load
- Slow the tempo for more time under tension
Regressions
Progressions
Muscles
Primary: Rectus Abdominis, Hip Flexors
Secondary: Obliques
Notes
FLEXION.
Sources
Attribution: Classic calisthenics / gymnastics conditioning canon