edge angle
The amount of snowboard tilt relative to the surface of the snow and to the hill. A snowboard placed flat on the snow has zero degrees of edge angle. The greater the edge angle and equipment sidecut, the shorter the turn radius.
edge control
Tipping the snowboard relative to the length of the longitudinal axis; skill used to increase the snowboard angle to the snow.
edging movements
Movements that increase or decrease edge angle.
effective edge length
The length of the edge, measured in centimeters, that’s in contact with the snow.
effective posture
The body position from which a snow- boarder has the greatest amount of movement options.
efficiency The expenditure of the minimum amount of energy required to accomplish a given task; the expenditure of the required amount of energy to get the maximum performance from the equipment; or the ratio of the input energy to the output movement or performance.
elementary phase (of motor development) The second phase in motor skill development, when students begin to develop more cognitive understanding of movements and timing.
equilibrium
The state of balance between opposing forces.
Eurocarve
A carved turn performed fully extended and low to the snow, or laid out.
evaluation phase
The phase in the movement analysis model involving the ability to assess observations and distill complex technical information into simplified, accurate conclusions.
extensors
Muscles that enable extension at a joint. For example, the hip muscles act to extend the thigh away from the abdo- men, and the trunk muscles cause the spine to arch backward.
eversion
Movement of a body part inward; the action of the foot rolling inward. Typically, this is associated with foot pronation. See also inversion.
evert
To turn something outward or inside out. exercises
Situations and tasks created to break down and isolate certain movements and skills for development. Exercises are often combined into a progression, or exercise line.
exit
The point at which a rider can get out of a halfpipe or off a feature; the combina- tion of movements a rider makes to air out of a pipe or off a feature; the point at which a rider ends a turn.
experiential learning
Learning through experience. Instructors create situations through use of terrain or task for students, enabling them to learn first-hand how to apply knowledge presented during the lesson.
exploration
A component of indirect instruction style, where students are encouraged to explore movements in a self-direction environment, assuming they are acting safely.
extend
To make longer; to stretch or open, e.g., extend a joint.
extension
Any movement that increases (i.e., opens) the angle (as expressed in degrees) of a joint. At times a snow- boarder extends the knee, hip, and ankle joints simultaneously. See also flexion.
feature
Any manmade element a skier or snow- boarder can ride or jib on, including rails, boxes, jumps, spines, halfpipes, quarterpipes, tables, etc.
feedback
Information instructors give students about their performance; helps clarify if and/or what action is needed to achieve a desired result; or information instruc- tors receive from students by watching and listening.
feeler
A type of learner who learns through experiencing different body movements that create body awareness.
extreme
A type of ski or snowboard competition featuring judged runs on steep, haz- ardous terrain; or radical, excessive, drastic.
extrinsic feedback
A reward given to a student for a good performance; undermines intrinsic moti- vation; see also intrinsic motivation.
extruded base
Bases made of p-tex, pushed from a machine into a solid sheet.
fairness
The fifth element of the SCARF model, which offers guidance for assessing a student’s unconscious motivation. The acronym stands for status, certainty, autonomy, relatedness, and fairness.
fakie
Used to describe riding backward without turning the body to face the direction of travel; [slang] riding switch; see also switch.
fall line
An imaginary line that follows the steep- est descent; the path along which a ball would roll if released down the slope.
falling leaf
An exercise in which the rider carves or skids back and forth, on the same edge, in an imaginary corridor; plural is leafs.
136 AASI SNOWBOARD TECHNICAL MANUAL
TheSnowPros.org
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