Fitorex

Cross-Body Crunch (obliques)

Bringing your elbow to the opposite knee emphasises the obliques.

  • Isolation
  • Bodyweight
  • Beginner

How to do it

  • Lying down, bring your elbow to the opposite knee
  • Contract your oblique, do not pull on your neck
  • Alternate sides under control

Sets, reps and tempo

Ranges: 8–15 reps or 20–45 s under tension · 1–2 RIR

Tempo: Slow, controlled movement; no momentum and no bouncing

Common mistakes

  • Pulling on your head
  • Going too fast

Muscles worked

Primary

  • Core / abs

Alternatives

PreviousDecline Crunch
Form animation: Cross-Body Crunch (obliques)
The same animation you see in the app while logging the set.
Type
Isolation
Equipment
Bodyweight
Level
Beginner
Pattern
Anti-rotation
Stimulus / fatigue
High
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