core flexion
Cable Crunch
core
cable · beginner
How to do it
- 1Kneel below a high cable holding the rope by your head.
- 2Crunch down by rounding your spine, then return.
What to think about
- Move at the spine, not the hips.
What usually goes wrong
- Hinging at the hips so the abs do nothing.
Worth knowing
- Curl your spine rather than folding at the hips, and keep it slow.
Watch it
Instead of this
What the cautions rest on
The safety points above come from these, not from house opinion.
- Strength and muscle gain require progressively increasing demand over time.
- Weight training carries a low injury rate compared with most field and contact sports.
- Holding your breath through a heavy rep raises blood pressure sharply, which matters most for people carrying cardiovascular risk.
- A rounding lower back under load has not been shown to cause back pain, so RORR treats it as a sign the set is finished rather than as a warning about injury.
Who checked this
Nobody qualified has. These are standard coaching points and ordinary gym safety, written down: how to set the thing up, what to control, and when to stop a set. They are not a clinical opinion and no physiotherapist or strength coach has read them back. If they disagree with somebody who can actually see you lift, believe that person.