My horse is just now getting over pigeon fever, and I'm going to start riding him again in a few days. The whole thing's gone on for about 5 1/2 weeks. He's dropped some weight and lost some muscle in the process, so I was wondering how much time does he need to get back in shape, what kind of exercises I should be doing with him, etc. I don't want to push him but I want him to get back to where he was. He was ridden 2-4 times per week, mainly arena work but trail rides too.
So, what can his get-back-in-shape plan be?