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Heidi and Tyler take to Moab’s Potash Road for one of the best ski-simulating sports: in-line skating. With feet parallel, skate downhill, mimicking the stance and turns in skiing. Focus on control and balance: Keep flexed at the hips, knees, and ankles; stay right over the middle of the skates; keep your body facing down the fall line; and work on the separation between upper and lower body. The rhythmic side-to-side skating motion on flats and uphills will help develop independent leg movement while building equal strength in each leg. Do uphill sprints of 30 to 60 seconds. Then come back down immediately to practice balance and control when your legs are still feeling the burn.