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Dumbbell Side Bend

A standing lateral flexion movement holding one dumbbell that strengthens the obliques and side trunk through a controlled range.

AbsDumbbellLateral flexion

Primary

External obliques

Secondary

Internal obliquesQuadratus lumborum

Equipment

Dumbbell

Pattern

Lateral flexion

Setup

  1. 01Stand tall holding one dumbbell at your side.
  2. 02Place the free hand on the hip or behind the head.
  3. 03Set feet hip width apart.
  4. 04Brace the core lightly before bending.

Execution

  1. 01Bend sideways toward the dumbbell, lowering it along the thigh.
  2. 02Stop when you feel a stretch in the opposite side.
  3. 03Pull the torso back upright using the opposite obliques.
  4. 04Finish the set, then switch hands.

Checkpoints

  • -The movement is purely sideways, no forward lean or twist.
  • -Hips stay level and still; only the torso moves.
  • -The dumbbell slides close along the leg.
  • -The working side is opposite the loaded hand.

Common mistakes

  • -Holding a dumbbell in both hands, which cancels the resistance.
  • -Twisting or leaning forward during the bend.
  • -Shifting the hips sideways instead of flexing the trunk.
  • -Rushing the reps with momentum.

Programming notes

  • -Use 2 to 3 sets of 10 to 15 reps per side.
  • -Take 2 seconds down and 2 seconds up.
  • -Progress load conservatively; heavy side bends thicken the waist.

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