If I had to guess it is just tightness in your hipflexers. Need to focus on getting some good streches in before hand that focus on that. A cheap set of briefs would help as well, you can pick up a z suit for about $40.
Best meet lifts: 1040squat, 730 bench, 730 deadlift
Best total: 1040-680-730=2450
"This is about strength, not getting a 10.0 form score from the Russian judge" Steve Shaw