Trotting on pavement?
So, now that my ring and paddock are both unrideable (ice, ice, and more ice along with some rock hard snow) I've been looking for alternatives to keep my horses in shape. One is my 9 yr old Arabian that I am training from the start (she was a pasture pet for the first 8 years), and the other is my 24 yr old Arabian who I just want to keep somewhat in shape because in the past year his altheticism has declined enough to make me worry. We do have a trailer, but can only trailer over to an indoor sporadically because of the cost and the road conditions. Also, the older horse really won't/can't ride in a ring anymore, so this really isn't a solution for him. Up until now I have been able to continue my training despite the weather, but it is now officially too dangerous to ride.
But, we do live on a dead end road connected to another dead end road. I am also a strong runner, so I thought up the idea that I could run with them (on leads) up and down the road for exercise. Once they get used to it I could even put my side reins on my younger horse so that she can develop her back and neck more. The only problem is that it is pavement. Since I wouldn't be on them, do you think they would be ok to do this a couple times a week? I have front Old Mac boots for both of them so I could put those on for a little extra cushon...maybe even buy/make some pads to put in them to absorb even more impact. I'm just looking for some opinions on whether this would cause more harm than good. Thank you!