Sports trainingAcademic language is an important factor in body movement.The movement track refers to the spatial characteristics of the movement composed of the route that a certain part of the body passes from the start position to the end position.The motion track is represented by the direction, form and amplitude of the motion track.
It refers to the direction of movement formed by the body or a part of the body when completing the movement.The direction of motion track can be clearly defined from the sagittal plane, frontal plane and vertical plane of the body as well as up and down, left and right, front and back six directions.The accuracy of the trajectory direction has a direct impact on sports performance, especially in shot put, javelin and other events.In terms of body movement track, external markers can also be used to determine.
Motion track form
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There are mainly two forms of motion track: straight line and curve.A straight line is a specific point of the body. During a period of movement, the direction of movement remains unchanged. However, due to the complexity of the body structure, when the body completes a straight track movement, it usually needs some rotation or arc action as an aid,But before, the lower limbs of the body need to bend the knee as an auxiliary action.The direction of curve movement is constantly changing.Rotation is a form of curvilinear movement. It refers to the rotation of the center of the human body around a fixed axis or central point, such as the rotation of athletes on the bars in the single parallel bars movement.In addition, the parabolic movement is also a curve movement, and the typical events are high jump and long jump.
Motion track amplitude
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It refers to the range of motion, measured by angle.The range of some parts of the body is expressed in terms of length and angle. The range of motion of each part of the body depends on the flexibility and elasticity of joints, ligaments and muscles.The movements of different events have a requirement on the range. For example, before the discus throw is sold, the throwing arm is required to make the maximum range, while the running range is too large, which will affect the speed.[1]
