Outdoor Classroom: Analysis of Common Terms in Alpine Skiing [Photo]

Alpine skiing is a skiing project in which a pair of skis are stepped on both feet and ski poles are held in both hands to slide down the mountain. Alpine skiing is the symbol and essence of skiing. Whether you are watching a game or playing on the ski slopes, you will always come into contact with some professional terms. The meaning of these terms is explained below.

Alpine skiing is a sport of snow on the slopes of nature, with its distinctive natural attributes. Alpine skiing is the symbol and essence of skiing. It is the main item of popular skiing. There are many terms involved in the research, learning, and practice of alpine ski technology. The major terms are summarized below. They must be carefully understood according to the practice of skiing.

Gravity: The weight of a skier can be roughly understood as gravity. The conversion of gravity weight ratio between two snowboards (referred to as gravity conversion) can also be understood as the conversion of weight.

Center of gravity: refers to the role of the body's total gravity. Its direction is toward the center of the earth. When the body is standing still, the position of the center of gravity is generally 7 cm in front of the third sacral vertebra. The center of gravity of the female is slightly lower than that of the male. If the human body is understood to be a vertical object with left, right, front, and back symmetry, the center of gravity must be on the center line of the symmetrical section of the left, right, and back. The center of gravity is in skiing, sometimes in the body, sometimes in vitro. The movement direction of the center of gravity in the ski movement is multidimensional, ie, the synthesis of front, rear, left, right, and up and down movements.

Center of gravity exchange: Generally refers to the change of weight on the left and right sides during skiing.

Center of gravity projection: Generally refers to the point where the center of gravity connects with the center of the earth through the snow.

Load or load: Generally refers to the snowboard (or weight-bearing leg, weight-bearing foot) that bears the main weight.

Force (Pressure): Generally refers to the pressure exerted by gravity or the combined force of gravity and intramuscular force on the snowboard (legs, feet).

Supporting area: generally refers to the position of the snowboard on the snow surface and the imaginary stable area formed by the board type and the board position (sometimes considering the support of the ski poles).

Roll-off line: A complete line of a ball rolling from the top of the mountain to the downhill and down the hill without changing the running direction. The roll-off line is perpendicular to the map contour line (drop line).

Downhill: From the hillside to the hillside, it slides straight down the rolling line.

Turning: Refers to gliding back and forth from the hillside to the downhill slope. It is called swing in competitive skiing.

Downhill or mountain climbing: Refers to wearing a snowboard to move above the hillside.

Plate type: refers to the form of two snowboards formed on the snow or space. The plate type of alpine skiing mainly includes two-plate parallel plate type, plow-type plate type, and scissors type plate type.

Double plate parallel plate type (parallel plate type): The two skis are in a parallel form, and sometimes the glide plane is flat on the snow surface; sometimes one edge of the double snow plate is cut into or carved on the snow surface in parallel.

Plowboard type: The double snowboard is in the form of narrow front and wide front, while the double snowboard usually stands up inside. Plowboard type also includes semi-plough plate type.

Scissor plate type: The double snowboard is in the form of front width and narrowness. One snow board must leave the snow surface and be in the space. Two skis cannot slide on the snow at the same time.

Position: Refers to the position of two skis in the snow or space.

Snowboard trace: refers to the gliding traces left on the snowboard during the skis' running.

Ski pole trace: refers to the round trace left by ski poles on the snow surface.

Turning arc: refers to the trace of the snowboard sliding on the snow during the turning process, which is generally a half-moon arc. Turning arcs is one of the traces of snowboarding.

Turning arc: refers to the center curve of turning arc. The convex side is called the outside, and the concave side is called the inside.

Turn radius: refers to the connection between the point of the turning arc and the inner imaginary circle center. The turning radius of the turn is generally between 11-16 meters.

Turn arc (swirling arc): Determined by the turning radius. The larger the turning radius, the greater the turning arc; the smaller the turning radius, the smaller the turning arc.

Turning elements: the main factors in the transition, mainly referring to gravity (body weight), blade, plate type, etc.

Outside board (legs, feet): refers to the skis (legs, feet) on the outside of the turning arc.

Inside board (legs, feet): refers to the skis (legs, feet) inside the turning arc.

Yamashita (leg): Snowboard (leg) on ​​the lower side of the slope. Generally outside the snowboard (leg).

Hill plate (leg): Snowboard (leg) on ​​the side of the hillside. It is usually a snowboard (leg).

Active board: The ski that plays a dominant role during the ski turn, that is, the heavy snowboard, usually the outer snow board or the mountain board.

Driven plate: The ski that can't play a leading role in the ski turning process, that is, the snowboard that is small or not heavy-loaded, usually the inner snow board or the hill board.

Editor: Zhao Hao