Here is the last in the Shred Prep preseason skiing exercise series- Physioball Knee Tucks.
Begin in push-up position with hands on floor and shins on the ball. Keep abdominal muscles engaged while pulling knees toward right shoulder until your toes are on the ball. The upper body remains stationary; the hips and knees flex. Return to the starting position and alternate sides. Aim to complete three sets of 12 to 15 reps. This exercise simulates absorbing terrain changes or moguls.
If you need a physioball, we have high quality GymnastikBall models available in different sizes in our Bozeman and Manhattan Excel PT offices and can inflate them for you too.