Dumbbell Russian Twist
The dumbbell Russian twist is an oblique exercise done seated on the floor, torso leaned back and a dumbbell held in front of the chest, rotating the trunk from side to side without moving the hips.
CORE · CORE
How it is executed
- Sit on the floor with your knees bent and feet slightly elevated.
- Hold a single dumbbell with both hands at chest level and lean your torso back to roughly 45 degrees.
- Rotate your torso to one side, bringing the dumbbell toward the floor beside your hip, then rotate to the other side.
- Keep your core tight and move with control, avoiding excessive momentum.
- Muscles worked
- Core
- Primary muscle
- Obliques
- Equipment
- Dumbbell
- Movement pattern
- Core
- Difficulty
- Intermediate
- What it is for
- StrengthHypertrophyCore strengthStability
Common mistakes
- Moving only the arms from side to side. If the shoulders stay square and the dumbbell travels alone, the obliques barely rotate anything. Turn the chest with the dumbbell: the shoulders point where the weight goes.
- Rounding the back as you lean. With the lumbar spine hunched, the rotation lands on the vertebrae instead of on the obliques. Lean from the hips with the chest open and the spine long, even if the angle is smaller.
- Turning fast and bouncing at each side. Speed turns the exercise into an arm swing with momentum, and the abs stop controlling the movement. Take one or two seconds per side and pause briefly at each end.
- Forcing the dumbbell to the floor. To get there, the hips turn and the lower back twists, and that range is not oblique work. Turn as far as the pelvis stays still; the dumbbell points at the hip, not the floor.
Frequently asked questions
- Which muscles does the dumbbell Russian twist work?
- The external and internal obliques rotate the trunk: on each turn the external oblique of one side works with the internal oblique of the other. The rectus abdominis and hip flexors hold the leaned-back position isometrically for the whole set, which is why the abs tire even without flexion. The erectors keep the spine long, and the shoulders and arms only hold the dumbbell: if they are what moves, the work is lost.
- Russian twist with a dumbbell or without weight: when should you add load?
- Without weight, the exercise already demands holding the lean and rotating with control, and that is where to start until the trunk turns with the hips still. The dumbbell adds resistance to the rotation and lengthens the lever the farther from the chest you hold it, so progress first by moving the dumbbell away from the chest, then by adding weight. Add load once 15 unweighted turns per side come out clean. With a kettlebell only the grip changes.
- How many reps of the dumbbell Russian twist should you do?
- A common starting point is 3 sets of 8 to 12 turns per side, leaving 1 to 3 in reserve, with one or two seconds per turn and a brief pause at each end. It goes at the end of the session, two or three times a week, and the load goes up only when the hips stay still on every turn. If the lower back bothers you, stop and check the technique.
- Is it better to do the Russian twist with the feet on the floor or raised?
- With the feet on the floor the exercise is more stable and all the attention goes to the rotation: it is the version for learning and for loading the dumbbell. With the feet raised, the rectus abdominis and hip flexors work much harder to hold the position, and balance forces a slower, shorter turn. Start with the feet down and raise them once you can truly rotate without wobbling; the dumbbell does not have to touch the floor.
Sources and editorial approach
The explanation, variations and FAQs are Kaizer’s editorial synthesis. ACSM’s 2026 guidance provides general context on progression and resistance training in healthy adults; it does not independently validate the technique of each variation.
No individual professional review is recorded for this page.
Variations and substitutions
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Glossary and calculators
RIR (reps in reserve)RIR is how many repetitions someone could still have completed at the end of a set before reaching technical failure.Isolation exerciseAn isolation exercise moves a single joint and concentrates the load on one muscle — the biceps curl, the triceps extension, the leg curl.RIR ↔ %1RM conversionWhat percentage of 1RM does your RIR correspond to?
