These pressure-control movements also relate to the deceleration that occurs as a rider comes into a bump. The rider can move the board slightly forward of the body in preparation for this deceleration. As the board slows, the rider then moves his or her body forward, toward the center of the board. As the board accelerates on the backside of a bump, the rider may want to move forward over the board to avoid feeling like the board is slipping out from underneath. These two movements are blended with absorption and extension.
Tactics Being able to do a skidded, short-radius turn well is critical to success in the bumps.
Riders should practice these types of turns on groomed terrain before heading for moguled runs. Regardless of set-up, once a rider can solidly make short, skidded turns, it's time to apply them in the bumps. Picture the path that a stream of water would take down the bumps. A snowboarder would follow a similar track. The board is naturally drawn to this line because it is usually the most traveled one.