With your dog standing on a non-slip surface, try to achieve as square position as possible.
Next, support under your dog’s core with one hand whilst you lift one hind leg up. Next support behind the ankle (hock) & gently ask your dog to stretch their hind leg forward. Most dogs should be able to reach their head with their hind paw, although each dog is different & this should be taken into consideration.
Professional physiotherapy and hydrotherapy centre for dogs in South East Kent