Mogul Jump Definitions

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Revision as of 08:21, 16 July 2008

CENTER OF BALANCE, AXIS, TILTING, PLANES, ROTATIONS


Center of Balance: Is located at the center of mass, where the three axis intersect.

Balance Point: Is where the forces on the body are equal to the forces created by the dynamic body actions

Body Segments: The body is divided into several sections; the upper body and lower body are two of the major segments

Vertical Axis: Runs from the top of the body to the feet, through the balance point.

Horizontal Axis: Runs from side to side, through the balance point.

Lateral Axis: Runs from front of the body to back of the body, through the balance point.

Tilted; One or more of the axis of rotation are less than 90 degrees to the direction of the rotation.

Off Axis; The rotation around the primary axis is tilted off of the axis.

Direction of Travel; The primary direction of travel is in the horizontal plane and thru the balance point. There are lateral movements around the body segments during flexion and extension.

Plane; There are three planes which the body pass through during dynamic movement, the vertical plane, lateral plane and horizontal plane.

Flexion: decreasing the angle between the joint or body segment

Extension; increasing the angle between the joint or body segment

Rotation; increasing or decreasing the different angles between the body segments

Degrees of Rotation; The number of rotations or part of rotations around an axis expressed in degree of rotation.

Primary Axis; the body actions to rotation on the first axis

Secondary Axis; the body actions to rotation on an additional axis

Grabs: With the body action of a flexion, a section or part of the ski is grabbed by the hand or hands.

Holds: With the body action of a flexion, a section or part of the ski or skis is grabbed by one or more hands and then held for a duration.

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