Weighted Overhead Crunch (on stability ball)
- Zielmuskel
- Rectus Abdominis
- Synergistenmuskeln
- Obliques
- Equipment
- Weighted
- Körperregion
- Waist
- Typ
- Strength
The Weighted Overhead Crunch (on stability ball) is a core strength exercise that targets the rectus abdominis while the obliques assist in stabilizing the torso. Lying back over a stability ball increases the range of motion beyond what a floor crunch allows, and holding a weight plate or dumbbell overhead adds resistance and demands greater core stability throughout each rep.
Weighted Overhead Crunch (on stability ball): So führst du sie aus
- 1Choose a weight plate or dumbbell you can control with straight arms, then sit on a stability ball with your feet flat on the floor, hip-width apart.
- 2Hold the weight with both hands and extend your arms straight overhead, keeping them close to your ears.
- 3Walk your feet forward until the middle of your lower back is supported on the ball and your torso is parallel to the floor — your hips should be slightly lower than your shoulders.
- 4Press your feet firmly into the floor and let your upper back drape over the ball so your rectus abdominis is fully stretched at the bottom position.
- 5Exhale and curl your torso upward by flexing your abs, lifting your shoulder blades off the ball while keeping the weight extended overhead and your arms straight.
- 6Crunch until your upper back just clears the ball, pause briefly to feel peak contraction in the rectus abdominis.
- 7Inhale and lower your torso back down under control, allowing your spine to extend over the ball to return to the fully stretched starting position.
- 8Complete all reps, then lower the weight to your chest before sitting upright off the ball.
Technik-Tipps
- Keep your lower back in contact with the ball throughout the movement — this is your base of support and protects the lumbar spine.
- Move slowly in both directions: a controlled lowering phase maximizes the stretch on the rectus abdominis that the stability ball provides.
- Keep your arms fully extended and close to your ears for the duration of each rep; bending the elbows shortens the lever and reduces the challenge.
- Anchor your feet by pressing them firmly into the floor to prevent the ball from rolling and to give the abs a stable surface to pull against.
- Choose a weight that lets you maintain form through the full set — losing control of the weight overhead can strain the shoulders and lower back.
Häufige Fehler
- Pulling the head and neck forward with the hands instead of curling through the spine, which strains the cervical spine and takes tension off the abs.
- Using too much weight, which causes the arms to drift forward and the lower back to hyperextend over the ball rather than staying supported.
- Sitting too far back on the ball so the lower back is unsupported, removing the controlled arch and risking lumbar strain.
- Rushing through the lowering phase and bouncing off the bottom, which eliminates the extended range of motion that makes this exercise more effective than a floor crunch.
- Allowing the hips to drop too low or rise too high, shifting the work away from the rectus abdominis and destabilizing the ball.
Häufig gestellte Fragen
What muscles does the weighted overhead crunch on stability ball work?
The primary muscle worked is the rectus abdominis — the long vertical muscle running down the front of the abdomen. The obliques act as synergists, assisting with trunk flexion and lateral stability. The overhead position also requires the shoulders to work isometrically to hold the weight in place.
Is the stability ball crunch better than a floor crunch?
For range of motion, yes. A floor crunch limits how far your spine can extend at the bottom because the floor stops the movement. The stability ball allows your torso to arch over it, giving the rectus abdominis a longer stretch before each contraction. This extended range of motion increases the mechanical work the muscle performs per rep.
How much weight should I use for overhead crunches?
Start light — a 5 to 10 lb plate is sufficient for most beginners. The overhead position lengthens the lever from your hips to the weight, making the movement harder than it looks. Choose a load that lets you complete all reps with straight arms, full range of motion, and no momentum. Progress the weight only when your form is consistent.
How many reps should I do?
For hypertrophy and strength endurance of the core, 3 to 4 sets of 10 to 15 controlled reps is a practical starting range. Because this is an isolation exercise, higher rep ranges with moderate weight tend to produce a better training stimulus than heavy loads with fewer reps.
Is this exercise suitable for beginners?
It is not the best starting point. Beginners should first develop stability on the ball using bodyweight crunches and learn proper bracing technique before adding an overhead load. Once you can perform 15 clean bodyweight overhead crunches on the ball without the ball shifting or your lower back losing contact, adding light weight is a reasonable progression.
