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Seated Side Crunch (Wall)

A seated oblique crunch performed against a wall that isolates lateral trunk flexion with constant postural feedback.

AbsBodyweightLateral flexion
GoLightWeight mediaseated-side-crunch-wall

Demonstration coming soon

Primary

Obliques

Secondary

Rectus abdominisQuadratus lumborum

Equipment

Bodyweight

Pattern

Lateral flexion

Setup

  1. 01Sit on a bench or chair placed with one side close to a wall.
  2. 02Sit tall with the head, shoulders, and upper back lightly touching the wall.
  3. 03Place the fingertips behind the ears with elbows wide.
  4. 04Brace the trunk and keep both hips planted on the seat.

Execution

  1. 01Slide the torso down toward one hip, bending sideways along the wall.
  2. 02Crunch the ribs toward the hip on the working side.
  3. 03Pause briefly at peak contraction of the obliques.
  4. 04Return to tall sitting under control and repeat, then switch sides.

Checkpoints

  • -The wall contact keeps the movement in a pure side-bend plane.
  • -Both hips stay planted; the pelvis does not hike.
  • -Ribs move toward the hip rather than the elbow diving forward.
  • -The return to upright is controlled, not a rebound.

Common mistakes

  • -Twisting forward off the wall instead of bending sideways.
  • -Lifting the opposite hip to fake a bigger range.
  • -Pulling on the neck with the hands.
  • -Rushing the reps and losing the peak squeeze.

Programming notes

  • -Use 2 to 3 sets of 10 to 15 reps per side.
  • -Add a slow 2 second squeeze at the bottom before adding any load.
  • -Pairs well after a heavy anti-rotation or carry exercise for the obliques.

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