staying fit for skiing and snowboarding is certainly an important theme and it is a good idea to make people aware that a certain fitness level is required before going on the slopes, primarily to avoid injuries but also to increase the level of enjoyment.
i am leading groups of back country skiers and snowboarders in the Himalaya and therefore have to work on staying fit continuously. There good fitness level is essential to cope with the challenges of the mountains, the changing snow conditions and the high altitude impact, and also because I have reached an age where neglecting my regular fitness training can have fatal consequences for my body.
My personal training program is actually very simple, it consists of regular walks/hikes between 15 to 30km, some mountain biking and a couple of yoga units per week. As back country skiing is an adventure sports activity that involves a number of risks, especially in the Himalayas and far away from the usual rescue services known to us, it is also important to work on the mental preparation, first by visualizing potential critical and unexpected situations and second by imagining one’s reaction in case of problems.
i wrote a more comprehensive piece on getting “Fit for the Himalaya” for the participants in my programs and published these later for a wider audience on my blog. http://freeskihimalaya.wordpress.com/2009/10/08/fit-for-the-himalaya/
for the majority of skiers getting fit for the slopes doesn’t need more physical exercising than what should be done regularly anyway to keep our body fit - but it requires a lot of discipline, determination and dedication and foremost the mental strength to leave one’s comfort zones!