The chair pose is a great exercise for skiers. Start by standing with your legs hips-width apart, weight evenly distributed through your feet (Tadasana/Mountain Pose). Raise your arms above your head, palms facing each other. Bend your knees slightly, your feet under your pelvis, hips bent slightly forward and your chest straight. Lower the pelvis, as though you were sitting on a chair. You can now push your shins forward, as though you were pushing them against your ski boot shaft. Look straight ahead. Your palms are facing inwards.
The Chair Pose prepares you for the downhill skiing position with bent knees, strengthening the leg and buttock muscles, which support the knees.