Skiers are known for their butts because of the strength that the back of their body must maintain in order to keep stable over rough terrain, power down the steep hills, and maintain agility (especially for backcountry). Make sure to work out your glutes, lower back, and hamstrings during the summer.
Keep the Cardio Going
Skiing requires both short-burst aerobic output, as well as long-distance stamina. Keep your lungs strong by challenging them; biking is a great way to incorporate stamina, sprints, cardio, and lower body work-outs.
Exercise your Abs
Balance is, obviously, a key skill for any skier, which means core strength is vital. Because skiing is multi-dimensional, it is important to work out all of the different areas of your abdominal muscles by practicing a variety of core workouts, such as planks, supermans, v-sits, and Russian twists.
Don’t Forget About the Guns
Strong biceps are needed for poling through flats and to aid in your stability. Neglecting your arms in the off-season could be the difference between getting injured or not during ski-season.
Sources: The Active TImes