You can find some calming agents for your pup at the pet store. I used Richard Organic Pet Calm for Draco when he broke his paw because he showed literally not difference and had so much energy but was limited on the type of activity he should be doing. But it's not something you should use everyday.
Mentioned above, you might want to train for when it's time to play. And I totally agree about playing in different positions. I don't have a back problem, but my body is usually sore about 4 days out of the week from ballet and work. I literally play fetch from laying down with Draco haha. I bounce his balls off lower parts of furniture and if he doesn't bring back then that's the end of fetch lol.
Also maybe getting a dogwalker could be really helpful. Getting someone to take your pup for a long walk or a jog will definitely tire them out. I'm not sure how it s where you are, but loads of people have dog walkers to take their dogs on hikes, runs, dog parks and such because they're too tired too busy and want their dog to burn some of that energy off then come home and cuddle. =]
__________________ Lana  , Draco 
Instagram: @PetiteDraco |