Core · Cable

Cable Standing One Arm Serratus (Obliques) Crunch

How to do the cable standing one arm serratus (obliques) crunch, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Cable Standing One Arm Serratus (Obliques) Crunch
Equipment
Cable
Difficulty
Intermediate
Logged as
Weighted reps
Movement
Flexion
Mechanic
Isolation

How to do it

Stand side-on to a high cable and hold the handle with one hand near your shoulder. Crunch down toward the opposite hip by pulling your ribs down and across against the cable, then return under control and switch sides.

  1. 1The working-side obliques pulling your ribs down and across
  2. 2A short, sharp crunch rather than a full bend
  3. 3Steady cable tension as you return upright

Common mistakes

  • Twisting from the hips instead of the waist
  • Pulling the handle down with your arm
  • Leaning away to use bodyweight instead of the obliques

Muscles worked

The cable standing one arm serratus (obliques) crunch mainly works the obliques, with the upper abs and lower abs assisting.

  • ObliquesPrimary
  • Upper AbsSupport
  • Lower AbsSupport
  • ForearmsMinor
  • LatsMinor
  • Lower BackMinor
  • Hip FlexorsMinor

Kovo programs the cable standing one arm serratus (obliques) crunch for you and tracks it every session.

We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.

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Last reviewed June 2026.