T Nation

Scap Push-up, Popping Feeling

During the scapula push up for some time now i have noticed a weird feeling during the motion. It seems near the end portion, once my shoulder blades touch each other, it feels almost as though they slip almost as though this is a feeling i shouldn’t be getting?

I know it’s a lousy description but im not sure how to describe it best, basically when the shoulder blades touch together it feels almost as though a bubble being burst right between them, does this sound normal or should i be concerned?