@zaccupples: If your knees crunch like popcorn, it's not worn cartilage. Picture a train running smooth on its track. Then it drifts a hair off the rail. It doesn't derail. It just grinds. Your kneecap does the same thing. When your knee bends, the cap glides through its groove. When the rotation between your thigh and shin is off, the cap drags off-center. That's the crunch. The fix is rotation, not massage. In half kneeling, foot out front, grab the shin and turn it in. Stay heavy on the heel, kneecap over the second toe. Then lock it in with a stagger wall sit, noisy knee in back. Anatomy visuals: @Anatomy.app Save this for your next leg day warm-up

Zac Cupples

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Wednesday 16 September 2026 22:05:00 GMT