When I get towards the bottom of the squat (PL style) I lose the arch in my back and my hip tilts (?) backwards (because my hamstrings are not flexible enough?). To me that sounds like a reasonable explanation why I'm loose at the bottom of the squat and as far as I've seen on PL videos the pros retain an arched back throughout the whole movement.
Am I correct to assume that having a rather flat almost round back anytime during squatting is a bad idea, and what can I do to improve this.
I thought of stretching the hamstrings... Anybody got thoughts on that?
Thanks a lot