【Abduction】movement of a joint away from the center line of the body. For example when you splay your foot outwards you are abducting.
【Accelerated Frame of Reference】
【Adduction】movement of a joint towards the center line of the body. For example when you turn your foot inwards you are adducting.
【AFD】 Anti-Friction Device - a small pad located behind the toe-piece of the ski binding.
【A - FRAME】The position that a skier's legs get into when the outside leg's knee collapses into the inner knee during the turn, or when the inner knee is not angulated into the centre of the turn. It typically (but not always) seen as a problem to be eliminated when skiers are using shaped skis, as can be a "weak" ski position.
【Alpine Sking】Also known as downhill skiing, uses skis the bindings of which fix the whole of the ski boot sole to the ski.
【Alpine Ski Binding】
【Angulation】When there is an angle (laterally) between the legs and the upper body. This is achieved by bending the body, so that the CoM is inside the turn and the edges are at an angle to the snow, while the body remains in balance. Angulation allows the skier to remain balanced while setting an edge (putting the ski on edge) – in the absence of Angulation the skier would topple over.
【Angular motion】: Rotary movement or circular motion about an axis. Angular motion is produced when forces are not applied directly through the centre of mass. Some of these factors can be affected through body movements. When instructing, this principle comes through in Stance & Balance and the BBP.
【Anticipation】An exaggerated Counter position used at the end of a turn. The body faces down the hill, while the skis point across the hill. Commonly used to help a skier pivot the skis downhill during the Transition, for the start of the new turn.
【Apex】The point during a turn at which half of the entire direction change which that turn will produce has been completed.
【ARCING】An American term for perfectly carved turns.
【ARC to ARC Turns】Dynamically skied Carved Turns that are perfectly linked with a smooth Transition.
【ARETE】A sharp, narrow mountain ridge. It often results from the erosive activity of alpine glaciers flowing in adjacent valleys.
【Arm box】: The arms should form a boxin front of the body with the hands in line with the elbows
【AT - Alpine Touring】AT ski equipment is specifically designed for ski-touring in steep terrain. A special Alpine Touring binding allows the heel to be clipped down for more support when skiing downhill, and allows it to be released to swing resistance-free from the toe, when climbing. Most AT bindings have DIN safety release, as in a normal alpine binding. Special ski boots with rigid soles are also used, something of a cross between a downhill ski boot and a hiking boot, light and flexible enough to be comfortable to walk up in, while still being stiff enough to provide good control when skiing down.
【Alpine touring ski binding】
【Avalanche】:A mass of snow and potentially rock and ice falling down a mountain.
【Full Depth avalanche】 An avalanche which cleans off the snow right down to ground level
【Loose Snow avalanche】aka point avalanche, an avalanche which starts at a point and gathers more snow as it travels down the mountain fanning out wider and wider as it travels.
【Powder snow avalanche】An avalanche in which the snow breaks up into dust and may become airborne. Can flow in a straight line over irregular terrain.
【Sluff Avalanche】Small snow slides running typically less than a 100metres and are small enough not to be considered dangerous to people.
【Slab avalanche】An avalanche that is started by a crack across the snowpack with a whole section of snow coming down the mountain.
【Avalement】A French term (from "avaler" to swallow). The art of absorbing Bumps, using the legs but keeping the body still and quiet.
【Avalement Turns】‘swallowing' the Bumps, so as to assist pivoting.
【Axes of Rotation】In free riding, the pivoting skill simply relates to turning left and right. However, its realm expands dramatically when thinking in terms of freestyle manoeuvres. It now takes on all planes of spinning.
【after body of ski】
【a freshly groomed piste】