Core · Stability Ball

Exercise Ball Body Saw

How to do the exercise ball body saw, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Exercise Ball Body Saw
Equipment
Stability Ball
Difficulty
Advanced
Logged as
Reps
Movement
Isometric
Mechanic
Compound

How to do it

Set up in a forearm plank with your shins or the tops of your feet resting on a stability ball. Keeping a rigid line from head to heels, push back through your forearms so the ball rolls toward your feet, then pull forward to return. Move in a slow, controlled saw motion.

  1. 1Feel your abs working harder as you push back and lengthen the body line
  2. 2Feel your shoulders and forearms driving the saw and holding you steady
  3. 3Keep your hips locked level the entire range

Common mistakes

  • Don't let your hips sag or your lower back arch as you push back
  • Avoid going so far that you lose the brace and collapse
  • Don't let the ball wobble side to side; keep the motion straight

Muscles worked

The exercise ball body saw mainly works the lower abs, with the lats, upper abs, obliques, forearms, lower back, glutes, front delts, and hip flexors assisting.

  • Lower AbsPrimary
  • LatsSupport
  • Upper AbsSupport
  • ObliquesSupport
  • ForearmsSupport
  • Lower BackSupport
  • GlutesSupport
  • Front DeltsSupport
  • Hip FlexorsSupport
  • TricepsMinor
  • Mid ChestMinor
  • Upper TrapsMinor
  • Lower TrapsMinor
  • QuadsMinor
  • HamstringsMinor

Kovo programs the exercise ball body saw 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.

More abs & core exercises

See all abs & core exercises →

Last reviewed June 2026.