Exercise Oblique Rotation Exercise Ball Kettlebell
The exercise oblique rotation with exercise ball and kettlebell is a seated rotational exercise that targets the obliques and core. Performed on an unstable ball with a kettlebell for resistance, it develops rotational strength and spinal stability simultaneously.
How to do it
- Sit on an exercise ball with your feet flat on the ground and hold a kettlebell with both hands at chest height.
- Lean back slightly to engage your core and maintain a stable position on the ball.
- Rotate your torso to one side, bringing the kettlebell toward your hip.
- Return to center and rotate to the other side in a controlled manner.
- Continue alternating sides for the desired number of repetitions.
Form cues
- Plant your feet firmly on the floor to anchor your base.
- Hold the kettlebell close to your chest to keep your leverage stable.
- Lean back slightly to keep your core engaged throughout the movement.
- Rotate from your midsection rather than just swinging your arms.
- Move slowly and with control from side to side.
Breathing: Exhale as you twist to the side and contract your obliques, and inhale as you return to the center.
Common mistakes
- Bouncing on the ball creates momentum instead of using muscle strength, which reduces the work your obliques do.
- Moving too fast on an unstable surface increases your chance of losing balance and slipping off the ball.
- Slouching your shoulders causes you to lose core engagement and puts unnecessary stress on your lower back.
Muscles worked
Primary: obliques. Secondary: abs, lower back, shoulders.
Suggested sets & reps
Get fitter
3 sets × 10–12 reps per side, rest 60 s
Lose weight
3 sets × 12–15 reps per side, rest 45–60 s
Build muscle
3–4 sets × 8–12 reps per side, rest 60–90 s
Easier, harder & alternatives
Make it easier
Make it harder
Take care if…
- If you feel sharp lower back or hip discomfort, ease off or choose a gentler option.
General educational guidance, not medical advice. Stop on sharp pain and check with a qualified professional if unsure.
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Start free →Frequently asked questions
What if I feel this in my lower back instead of my waist?
You are likely leaning back too far or letting your lower back round. Sit up slightly taller and focus on tightening your abs before you start twisting.
How often can I do rotational core exercises?
2 to 3 times per week is plenty for most beginners to allow for proper recovery.
Can I do this without a kettlebell?
Yes, you can start with just your body weight or hold a light household object until you feel comfortable with your balance on the ball.