The thing with injury is it makes you much more aware of recovery and staying fit for function! After my knee injuries the only way back onto the water has been to keep my head together and make sure I am training right, eating good and focusing on recovery. A bit part of that has been fitness.
Kiteboarding is a sport that keeps you fitter than most, especially if you are unhooked riding, so when you are not riding a lot it is so important to keep you body in good working order! This is a short video about how I have been doing that and what sort of things I have been doing at the gym with my trainer from the strong room on the isle of wight.