High Jump ..?
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Answers:
The specific techniques of the run are just as crucial to excellent high jumping as are those of bar clearance, and must be practiced as often and as attentively to exact details. The run sets the basic pattern for the jump; if it is ill-done or ill-timed, bar clearance will be equally so. At least one accurately placed check-mark is mandatory.
Angle of run: The greater the angle of run, the more the cross-bar forces an athlete to jump up, vertically, but the more difficult it is to drive a straight leg up from a close take-off, and the greater the lateral distance over which arms and legs must clear the bar. The smaller the angle of run, the shorter the lateral distance becomes, but the greater the tendency to dive and slide along the bar. Most great straddle jumpers have run at angles of 30 to 40 degrees.
Length of run: The run must be long enough to give gradual and smooth acceleration to the desired speed at the take-off. If such speed is slow, the run need be no longer than seven strides; if fast, 13 strides may be found to be effective.
Speed of run: If a jumper has the leg power and conversion technique to use it, the greater the speed of the run, the greater the body momentum that can be converted upward. It is suggested that a jumper's speed should be their natural fast rhythm. This may be too fast for best jumping now. Thye jump better today if they slow down. But power training of related muscles and better technique in the gather and take-off will make effective use of such speed and enable the athlete, in the future, to jump nearer their real potential.
The method of run: All high jumpers use three or four fast steps just prior to the take-off. They differ in the number of preliminary steps, the number of check marks, the speed of the early steps and therefore of the later ones the lowness of the crouch, and the angle of body at E the take-off. In 1960, when jumping his best, John Thomas took three slow and four fast steps. Later, influenced by Brumel, he ran longer and faster, but never fully mastered such increased momentum. Brumel took four easy steps and seven fast. The Swedish jumpers Petterson, Nilsson, et al took three short steps, to a first checkmark, six accelerating steps, to a second check-mark. and four very fast steps to the take-off; 13 in all. If the run is long, two checkmarks should be used; though as the technique of the run is mastered, the second will be of lesser importance
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