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workouts/Exercise Library/Crunch/info.md
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rzen 5bbe3f6ff0 Add the free-weight canon and bodyweight staples (16 exercises)
Squat/lunge: Barbell Squat, Goblet Squat, Bodyweight Squat, Lunge.
Bench station: Bench Press, Incline Bench Press, Dumbbell Bench Press,
Dumbbell Fly (the fly authors the face-on camera for its frontal arc).
Dumbbell rack: Dumbbell Row, Dumbbell Shoulder Press, Dumbbell Curl,
Lateral Raise - first uses of the dumbbell prop. Bodyweight: Push-Up,
Pull-Up, Crunch, Dip.

Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3
2026-07-07 12:09:08 -04:00

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Crunch

The floor ab curl — peel the shoulder blades off the mat, squeeze, and lower. Short range, all abs.

  • Category: Main circuit
  • Type: Spinal flexion (upper)
  • Targets: Rectus abdominis
  • Prescription: 3 × 1520, slow

Setup

Lie on your back, knees bent, feet flat. Fingertips lightly behind the ears, elbows wide.

Execution

  1. Exhale and curl the ribs toward the pelvis until the shoulder blades leave the floor.
  2. Squeeze the abs hard at the top for a beat.
  3. Lower the shoulders back down without letting the head rest.

Cues

  • It's a curl, not a sit-up — the lower back stays on the mat.
  • Chin off the chest; the hands never pull the head.
  • Exhale on the way up to deepen the contraction.

Common Mistakes

  • Yanking the neck with the hands.
  • Sitting all the way up with the hip flexors.
  • Racing through reps with momentum.

Progression

Slow the tempo and add a pause at the top; hold a small plate on the chest, or move to the Abdominal machine for stack-loaded flexion.