I read this article today about core stability issues on Alwyn Cosgrove's blog spot:
Alwyn Cosgrove's blog
Man, that is my problem exactly I think. I don't think it's a strength problem, or a flexibility issue. Whenever I try to get lower on squats, it just feels like I'm about to topple over. I have this issue even just doing BW squats. So, when he talks about "core stability", is he talking about strength, as in abs? Or is there more to "core". And most importantly, how do I fix this so that I can squat below parallel. It's my most frustrating exercise because of this! Thanks for any advice.