Horseback Riding

I've started horseback riding at my friends house. We've got it planned to have training every Saturday for a while. It'll be good physical therapy for MS.
It's a good thing. When I parked at her house, just walking up to the barn/arena my legs started to go tingly. But the riding didn't have that happen. I'm actually not sore at all. My knees hurt a bit when I first got off the horse, but by the time we got back down to the house, they were fine.
I'm really excited about this.