TILT


Tilt is the action of adjusting the angle between one edge and the sliding surface (as when a flat board is tilted up onto the toeside or heelside edge) or between both edges and the sliding surface (as when an edged board is tilted down to make it flat). When a rider tilts the board on edge, the snowboard edge angle, relative to the angle of the sliding surface, is considered. A greater amount of tilt makes a smaller riding platform or surface area.


Slower speeds typically accompany lower edge angles, unless the rider is intentionally riding the board flat and in the fall line, which allows for a larger platform on which to balance. Higher


FIGURE 3.1: A rider’s use of the board performance con- cepts determines how the board interacts with the snow.


TILT


PRESSURE


BOARD PERFORMANCE


TWIST


PIVOT


speeds allow a rider to achieve higher edge angles and still remain in balance because of forces built up in the turn (including gravity, momentum, and centripetal force). Te rider establishes and adjusts board tilt with lateral balancing movements of the CM relative to the working edge. Lateral (side-to-side) movements that can increase or decrease the degree of


tilt include: ■ Ankles: Flexion and extension ■ Knees: Flexion and extension ■ Hips: Flexion and extension of the femur in the hip socket (with feet either laterally in front of or behind the pelvis)


FIGURE 3.2: Performance Concepts


TILT


PERFORMANCE CONCEPTS


TWIST


PRESSURE 46 AASI SNOWBOARD TECHNICAL MANUAL


PIVOT TheSnowPros.org


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