Exercise guide · Intermediate · Compound
Weighted Seated Twist (On Stability Ball): How to Do It & Muscles Worked
The weighted seated twist on a stability ball is an exercise that targets the abdominal muscles, particularly the obliques, while also engaging the lower back. It requires core strength, balance, and coordination due to the instability of the ball and the added resistance from the weight.
How to do the weighted seated twist (on stability ball)
- Step 1: Sit on a stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
- Step 2: Hold a weight plate or dumbbell with both hands close to your chest.
- Step 3: Engage your core and slowly rotate your torso to one side, keeping your hips stable.
- Step 4: Pause for a moment at the end of the rotation, then slowly return to the starting position.
- Step 5: Repeat the rotation to the other side.
- Step 6: Continue alternating sides for the desired number of repetitions.
Sets, reps and programming
| Goal | Sets | Reps | Rest | Effort |
|---|---|---|---|---|
| Strength | 3–5 | 3–6 | 3–5 min | 1–3 reps in reserve |
| Muscle growth | 3–4 | 6–12 | 2–3 min | 1–2 reps in reserve |
| Muscular endurance | 2–3 | 12–20 | 1–2 min | 1–3 reps in reserve |
Ranges follow the ACSM position stand on progression in resistance training. Muscle grows across a wide range of loads when sets end close to failure (Schoenfeld et al., 2017), longer rests between heavy sets support strength and size (Schoenfeld et al., 2016), and stopping a rep or two short of failure works about as well as training to failure (Grgic et al., 2022). Estimate your working weights with the strength calculators.
Weighted Seated Twist (On Stability Ball) alternatives
More exercises that train the abs as their main target:
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Arm Slingers Hanging Bent Knee Legs
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Arms Overhead Full Sit-Up (Male)
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Assisted Lying Leg Raise with Lateral Throw Down
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Assisted Lying Leg Raise with Throw Down
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Band Alternating V-Up
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Band Assisted Wheel Rollerout
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Band Bicycle Crunch
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Band Jack Knife Sit-Up
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More abs exercises
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Dead Bug
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Hanging Leg Raise
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3/4 Sit-Up
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45° Side Bend
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Air Bike
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Alternate Heel Touchers
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Sources
- American College of Sports Medicine. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009;41(3):687-708.
- Schoenfeld BJ, Grgic J, Ogborn D, Krieger JW. Strength and hypertrophy adaptations between low- vs. high-load resistance training. J Strength Cond Res. 2017;31(12):3508-3523.
- Schoenfeld BJ, Pope ZK, Benik FM, et al. Longer interset rest periods enhance muscle strength and hypertrophy in resistance-trained men. J Strength Cond Res. 2016;30(7):1805-1812.
- Grgic J, Schoenfeld BJ, Orazem J, Sabol F. Effects of resistance training performed to repetition failure or non-failure on muscular strength and hypertrophy: a systematic review and meta-analysis. J Sport Health Sci. 2022;11(2):202-211.
Step-by-step instructions and demonstration media are from the ExerciseDB exercise dataset.
This guide is general fitness information, not medical advice. Stop if an exercise causes pain and speak to a doctor or physiotherapist about injuries or health conditions before starting a new programme.