On Christmas Eve I adopted a 20 year old Leopard Tortoise...Julia . She was left to roam the house with her previous owners without any heat source or UVB. Luckily they left her to roam in the backyard in the summer. I have 20 years experience with smaller tortoises, however Julia is my first large tortoise. I have noticed she does not walk properly on her hind legs and her foot pads and nail growth show that she has been doing this a long time. How do I help her strengthen her back legs and have proper posture? Thanks for you input!