Machine Crunch

What you'll gain

• Builds upper-ab thickness with progressive, measurable load.

• Isolates the abs in a fixed path that's easy for beginners to feel.

• Allows real overload without straining the lower back or hip flexors.

Step-by-Step Instructions

1. 1

   Sit on the machine and adjust the seat so the chest pad sits across your upper chest, not your throat.

2. 2

   Hook your hands or arms into the handles and plant your feet firmly on the floor or foot pads.

3. 3

   Brace your core and curl your ribcage down toward your hips, keeping the motion in the abs.

4. 4

   Pause briefly at the bottom of the curl, squeezing the abs hard before reversing the motion.

5. 5

   Return slowly to the start over 2 to 3 seconds, keeping tension on the abs the entire way up.

6. 6

   Repeat for 10 to 15 controlled reps, never letting the weight stack slam back to rest between reps.

Common Mistakes

• Pulling with the arms or shoulders instead of curling with the abs, which removes the load from the target muscle.

• Using a heavy stack and a tiny range of motion, which trains momentum rather than the abs.

• Letting the weight stack snap back at the top, killing the slow lowering where most growth tension lives.

• Setting the chest pad too high on the throat, which makes the lifter brace with the neck instead of the core.

About This Exercise

The machine crunch lets lifters add real load to a movement that bodyweight quickly outgrows. Seated against a pad with the chest cradled, the user flexes the spine forward against a stack, isolating the upper abdominals through a smooth, fixed range of motion. The fixed path makes it easier to feel the abs work and harder to cheat with hip flexors. For app and content use, this clip slots into hypertrophy blocks, beginner-friendly core circuits, and gym-machine-only programs where bodyweight ab work isn't enough stimulus. It pairs well alongside cable crunches and ab wheel content as part of a progressive core track in any strength training app.

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