Weighted Overhead Stability Ball Crunch
In SetGrip: Stability Ball Crunch (Weighted Overhead)
- Secondary muscles
- Obliques, Spine
- Body part
- Core
- Position
- Lying
- Laterality
- Bilateral (both sides together)
- Category
- Strength
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Combining the ball's extended range with a weight held at arm's length overhead stacks two difficulty multipliers on one crunch: the long lever of the load and the balance demand of the surface. Next to the chest-loaded Medicine Ball Crunch, the same weight here feels several times heavier, so start with the lightest plate available.
How to do the Weighted Overhead Stability Ball Crunch
- Sit on a stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
- Hold a weight plate or dumbbell with both hands and extend your arms overhead.
- Engage your abs and slowly curl your torso forward, bringing your chest towards your knees.
- Pause for a moment at the top, then slowly lower your torso back to the starting position.
- Repeat for the desired number of repetitions.
Tip: Breathe out as you crunch and let the last bit of air leave the lungs at the top of each rep.
Muscles worked
Primary
Abs · Core
The rectus abdominis shortens to bend the spine forward, and each rep should end with the upper abs fully contracted and the ribs pulled down.
Secondary
- Obliques — Twisting or side crunch variations bring the obliques in, and you should feel them along the side of the waist on the working side.
- Spine
Common mistakes
- Pulling on the neck — hands behind the head should support, not yank; keep the elbows wide and the chin about a fist away from the chest.
- Sitting all the way up — a crunch is a curl of the ribs toward the pelvis, not a sit-up; the lower back should stay on the floor the whole time.
- Cranking out fast reps — momentum does the work if you bounce; lift to a squeeze, hold for a count and lower slowly.
- Never adding load — once bodyweight reps get easy, hold a plate on the chest or use a cable rather than doing sets of 50.
Sets, reps and where it fits
| Goal | Sets × reps | Rest |
|---|---|---|
| Strength | 3 × 8–12 | 60 s |
| Endurance | 2–3 × 15–25 | 45 s |
Crunches close out a session after the heavy work, or they can fill the rest periods between sets of a lift that does not need much bracing. Pair a cable crunch with a cable side bend on the same stack.
Variations and alternatives
Similar exercises
Without weighted
Frequently asked questions
What muscles does the Weighted Overhead Stability Ball Crunch work?
The Weighted Overhead Stability Ball Crunch primarily works the abs. It also involves the obliques and spine, which assist the movement and stabilise the joints.
Is the Weighted Overhead Stability Ball Crunch good for beginners?
It is rated intermediate, so it suits people who already train regularly. Beginners can still do the Weighted Overhead Stability Ball Crunch with light load and a spotter or coach watching the first few sessions; if it feels awkward, pick an easier variation from the alternatives below first.
What can I do instead of the Weighted Overhead Stability Ball Crunch?
If you cannot do the Weighted Overhead Stability Ball Crunch, try the Weighted Crunch, the Weight behind Head Weighted Crunch or the Arms Overhead Crunch. Each of them trains the abs through a similar movement, so you can swap them in without changing the rest of the workout.
How many sets and reps should I do?
It depends on your goal. For the Weighted Overhead Stability Ball Crunch, a sensible starting point is strength: 3 × 8–12 with 60 s rest; endurance: 2–3 × 15–25 with 45 s rest. Train it at the end of a session or pair it with a lower-body lift as active rest.
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