Late last year I was asked to help a close PH friend with a wounded leopard. Sorted. Then I met the 'hunter' that caused the problem. At first, I thought the guy was just filthy-rich-spoilt-rotten, but it didn't take me long to realize that he was just too damn lazy to shit. And extremely unfit. Every 200 yards, the BWANA had to have his chair, umbrella and cooler-box. It's not the first time that I have met hunters who have planned a hunt in Africa for two years, have the fancy artillery, all the bells and whistles, but they can't walk a mile without passing out.
Guys, Africa is a beautiful place to hunt but, she's a also a real bitch. She'll chew you up and spit you out quickly if you don't prepare for her physically as well. At least get walking fit before your hunt. If you are able-bodied and can do it, being able to walk 5 miles a day, at a brisk pace, without breaking too much of a sweat, is where you should be to really enjoy yourself in Africa.
So, for your own sake, add a bit of PT to your list of 'things to do' before you get on the plane.