Machine Ab Crunch

Adjust the seat and pads so the spine can flex freely, with the chest or shoulders against the pad.

Crunch the torso down by flexing the spine, then return under control to a lightly extended position.

• Flex the spine, don't just push the pad
• Keep the neck neutral
• Pause at the shortened position

• Using the arms and hips instead of the abs
• Excessive load with tiny range
• Jerky tempo

• Weighted decline crunch

No verified references have been added for this exercise yet. This section is awaiting review — nothing here is cited until a source is confirmed.