How To Strengthen Old Dogs Back Legs. If your dog’s mobility is compromised, try with some easy exercises like moving his legs gently and doing circles. Hi all, i have a 13 year old border collie who in most ways is still fighting fit apart from however her back legs give way occasionally.

Hind leg collapse should be considered an emergency. How can a leg brace help in older dogs back legs collapsing? If this thought has popped up in your mind, then read on.