big E he also said the above.... so I am traversing straight across the hill with one half of my body leading the other yet I am not countered... I'm confused I admit it...
The following terms and their definitions should help. Various sources are used to compile this list.
Adduction- Adductor muscles on the inner side of each thigh that contract to pull your thighs toward each other
Abduction- Abductor muscles on the outsides of your thigh and hips that serve to move your thighs apart from each other
Anticipation release- A turn initiation force used to impart a rotary force to the skis, through the unwinding of anticipation.
Arc- (n) Is the pattern left in the snow by an edged, de-cambered, sliding ski when the tail is following the tip. This causes deflection and a change of direction (turn).
ATM/ATS- American Teaching Method / American Teaching System
Balance- Equilibrium; body movements (in search of) to maintain equilibrium.
Braquage- A powerful simultaneous rotary mechanism involving both legs, each using the other as an "anchor" or "fulcrum." Contrary to the current (PSIA) interpretation of braquage the skis do not necessarily receive a corresponding rotary force to pivot them.
Base of Support- The surface structure provided by the ski snow contact patch and the support offered by the equipment.
Christy- A skidding turn
Core- Muscular and skeletal anatomy comprising the pelvic region and overlapping musculature including the lower spine and ribs. (1)
Counter balance- A body movement equal and opposite to the force causing imbalance
Counter Rotation- Turning the skis by twisting the torso and legs in opposite directions. Newton’s law of action and reaction applies. (2)
Deflection- A change of direction resulting from the interaction between the skis and the snow. (3)
DOT- Direction of travel
ENERGIZED- Stored energy in the skis (seen as reverse camber) from ski/snow, mass/gravity deflection process
Energy- (force or power) primarily from the force of gravity 90%, with physiology (muscular and skeletal) applying 10% (1)
Force- The cause of motion or a change of motion/direction, as in deflection from the ski/snow interaction
Fulcrum Turning- A rotary mechanism in which one leg rotates using the other leg as an anchor or ‘fulcrum."
Garland- An exercise involving linked, incomplete turns. From a traverse the skier turns downhill but before matching the fall line, turns back up; tracks resemble a garland draped on the branches of a Christmas tree.
Inside half- Foot, knee, hip and half of torso that are on the inside of the radius of a turn
Lateral Knee Movement- Abduction or adduction of the legs, the knees are moved laterally (from side to side) as a result and are used as a visual reference.
Mechanics- The technique, the specified movements and the associated skills.
Linear- movement along a line, in one plane
Linear hip movements- Hip flexion and extension, perpendicular to skis top sheet
Lower body- both legs, from the head of the femur on down, feet included
Optimum outside leg length- the approximate alignment (flexion) suggested for movement and force resistance/exertion is: ankle@13 degrees, knee @ 26 degrees and hip @ 13 degrees
Outside/Inside half of body- can be thought of as a column or shaft consisting of foot, leg, hip, oblique, shoulder and arm of one side of the body (to the outside or inside of the radius of a turn). For example, this concept allows the stance/lead change from TRANSITION to PREPARATION to be conceptualized and executed. The body has asymmetric movements of its outside and inside half. The adduction/abduction of the legs and the push/pull (extension/flexion) of the hips are two primary examples.
Phase- Any one of the four distinct postures of ARC TECH and the associated body movements
Physiology- the body and its functions as related to skiing (musculature & skeletal)
Pressure- force exerted by physiology to the skis and ski-snow interaction
PSIA- Professional Ski Instructors of America
Re-centering- The lateral knee and linear hip movements of TRANSITION
Rise line- See: Illustrations
Rotary movement- any movement about an axis
Rotation- The process of transmitting rotary momentum of the torso and hips around the vertical body axis to the feet and skis (2)
Skills concept- The body movements of skiing under the umbrellas of turning, edging and pressure control
Sliding- Refers to the ski moving across the snow along it’s longitudinal axis. The ski is parallel to the DOT. Sliding skis as the base of support is a root principle of ARC TECH. See: Illustrations
Slipping- Refers to the ski moving across the snow sideways. The ski is orientated at an angle to the DOT. The ski’s tip and tail do not follow the same track. See: Illustrations
Space- where you are on the hill relative to rise line, horizontal line, angles of entry/exit and exit zones
Stance- body alignment, posture
Stancing- The progression of the proper body movements through the four phases of ARC TECH, (stance changing) with no static positions.
Tactic- A strategy for action, choice of line (space)
Technique- A method, a systematic procedure
Tonus / tone- A functional muscular tension prepared for dynamic activity
Turn (Arc)- A change of direction caused primarily by the force of gravity and deflection
Traverse (verb)- to travel horizontally or diagonally across the hill. This can be done on a sliding or slipping base of support.
UDT- In the PREPARATION PHASE the entire inside half of the body leads - similar to the stance of a normal traverse, but up side down due to the off camber tilt of the slope
Upper body- The pelvis on up (muscular & skeletal)