There’s no doubt about it, snow sports are fun. Whether you’re hurtling down the side of a mountain at 40 mph, or exploring backcountry terrain; snow sports always involve excitement, adventure and exhilaration. But snow sports are much more funwhen you’re physically fit. There is nothing worse than having to limp in early from the slopes because you’re tired or sore (or even worse, injured). Snow sports are major workouts and if you’re not fully prepared physically for your holiday,…