I don't know if you'll be able to, but I found chair boxing very easy, fun, and a good workout when done in a good routine. I couldn't ride for 2 months due to my knees, and still am not able to run although its been 9 months, but one of the most fun exercises through it all has been chair boxing, especially if you have a punching bag. I don't know if you can do that with a back surgery, but if you can, I highly recommend it.