AASI SNOWBOARD TECHNICAL MANUAL Board Performance Concepts Objectives
■ Describe and define the four board performance concepts. ■ Identify body part-specific movements for each of the board performance concepts. ■ Understand how board performance concepts work in combination to achieve different outcomes in riding.
■ Apply the board performance concepts to your lessons. INTRODUCTION
To be an effective instructor, it’s important to have a base performance level you can compare your students to in order to determine what skills need to be worked on. In AASI’s Snowboard Teaching System you can look to the snowboard itself first, because, regardless of the person, their physical capabilities, or snow conditions, the snowboard’s capabilities are relatively constant and unchanging. Once you have identified what the board is doing, you can then begin to look at what the rider is doing to cause it. Trough performance observations, you can gain insight into any riding task and see what needs to happen in order to achieve the desired outcome. Te board performance concepts – tilt, pivot, twist, and pressure – result from
flexion, extension, and rotational movements made by the rider. Interactions with the sliding surface (typically snow) are largely dependent on all of the board performances. Because riding is a blend of all the performances, you can rarely change one aspect without having an effect on the others.
BOARD PERFORMANCE DEFINED
Board performances are described as follows: ■ Tilt: Te act of creating an angle between both edges or one edge and the sliding surface.
■ Pivot: Te act of rotating a snowboard around a particular point or axis along its length.
■ Twist: Te act of applying a torsional force that changes the amount of edge angle and pressure along the length of the snowboard.
■ Pressure: Te act of managing the degree and location of forces between the snowboard and the snow along the snowboard’s length (tip to tail) and width (edge to edge).
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Tis chapter introduces board performance concepts and how they help snowboard instructors identify what skills their students need to develop. Additional emphasis is placed on the body part that drives individual actions of a snowboard. Board performance concepts are relevant to all parts of snowboarding.
TheSnowPros.org
CHAPTER 3: BOARD PERFORMANCE CONCEPTS 45
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