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Seated Modified Single Dumbbell Russian Twist on Bench

Seated variation with a single dumbbell that builds rotational core strength with good support.

Core & AbsIntermediateStrengthRotation

At a glance

Muscles workedPrimary: obliques. Secondary: abs, core
Muscle groupCore & Abs
DifficultyIntermediate
TypeStrength · Rotation
Sets & reps3 sets × 12-16 total
Estimated calories burned~20 kcal

How to do it

  1. Sit on a bench leaning back slightly, holding a single dumbbell with both hands.
  2. Rotate the torso side to side, moving the dumbbell across the body.
  3. Keep the core braced and feet secure.
  4. Control the movement in both directions.
  5. Repeat for the desired number of reps.

Equipment

Coaching tips

Benefits

Seated variation with a single dumbbell that builds rotational core strength with good support.

Common mistakes

Avoid rounding the lower back or using momentum to swing the weight.

Make it harder

Increase dumbbell weight or slow the tempo.

Make it easier

Perform without weight or reduce range.

Breathing

Exhale as you rotate, inhale as you return to center.

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General fitness and nutrition information, not medical advice. Check with a qualified professional before starting a new exercise or diet plan, especially if you have an injury or health condition.