As said, try to let her rest as long as you can before getting her up. I also make sure we go on a nice long walk at night and a shorter walk in the morning. If you can, I love to take panels to longer shows where thay can walk around loose at night. This really helps us on keeping our heavy breds fresh and loose. As heifers mature and get heavier and/or heavy bred, it can take a lot more work to keep them from getting overtired and stiff at shows. Good luck!