Re: Dont know if I can do this
Do consider power walking. That isn't the funny sort of walking people laugh at, but a rate of speed that, with conditioning and training, can have you moving as fast as a runner, without the pounding on the joints. At my best I can walk as fast as some people can run. Shoot, at first ,for 15-minute miles, then get faster as you are able. This will give you nearly the fitness advantages and calorie burning of running. There are some books and websites about the manner in which to achieve this, two important ones being the use of the arm swing (there really is a good reason) and taking small steps. People might look at you funny, and we are not universally accepted at races, but we power walkers are getting fit and staying there. Good luck!