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How to do the Pull In (On Stability Ball)

CoreAbsBodyweightIntermediate

The pull-in on a stability ball is one of the most demanding bodyweight core exercises available, forcing your abs to work through dynamic spinal flexion while your entire body fights to stay stable. Master this movement and you build the kind of deep, functional core strength that transfers to every lift you do.

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Muscles worked

Primary
AbdominalsObliques
Secondary
Hip flexorsLower back

Step-by-step

  1. Start in a push-up position with your shins resting on the top of the stability ball, hands directly under your shoulders, body in a rigid plank.
  2. Brace your core hard and exhale as you draw your knees toward your chest, rolling the ball forward beneath your feet.
  3. Pause for a beat at full compression when your knees are tucked close to your torso and the ball is near your ankles.
  4. Slowly extend your legs back to the starting plank position under full tension, resisting the ball rolling away from you.

Common mistakes

  • Letting the hips pike too high on the pull — keep your lower back from rounding by initiating with the abs, not by lifting the hips toward the ceiling.
  • Rushing the return phase — the eccentric extension back to plank is where significant core strength is built, so control it deliberately instead of letting the ball roll you out.
  • Losing shoulder stability as fatigue sets in — if your arms buckle or your scapulae wing out, stop the set, because faulty shoulder position shifts stress away from the abs and risks injury.

Pro tip — Place the ball under your mid-shin rather than your ankles to shorten the lever arm slightly, then progressively move it toward your feet over weeks — this small adjustment lets you own the movement pattern before the full mechanical challenge exposes weak links in your core.

Sets & reps by goal

Build muscle3–4 sets × 10–15 reps
Get stronger3–4 sets × 6–8 reps
Lose fat / tone3 sets × 12–20 reps

Rest: 60–90 sec between sets.

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