Exercises

Abdominal crunch machine

Flex the torso against a guided resistance while the pelvis stays supported.

Seated abdominal crunch machine with supported pelvis, feet on supports and modestly curled torso.

Machine · Adjustable seat and pads

Source: Life Fitness · Abdominal

Step by step

  1. Adjust the seat and pads so the machine's pivot matches the intended movement; choose a light load.
  2. Keep the pelvis on the seat, place feet on the supports and take the prescribed grip.
  3. Breathe out and curl the ribs toward the pelvis with control, keeping the neck relaxed.
  4. Return slowly to a comfortable starting position and set down the resistance before getting out.

Common mistakes

  • Moving the arms alone or pulling the head forward.
  • Using momentum or forcing a large end range.

Anatomy and technique: the references below. Region boundaries and movement diagrams are schematic. Exercise images are AI-generated illustrations.