HIGH JUMP & POLE VAULT

High Jump
High jump is an important and popular field event. To be a successful high-jumper one must have proper leg spring off the bounce. Moreover, he should have a slight build and light-weight. In other words a well coordinated man of average height and weight can develop himself to be a good high jumper.
Styles of High Jump: Although the most popular, natural and easy style of jump is the “scissors style” but it is not much encouraged.
There are generally three established style of High Jump
  • · The straddle
  • · Western roll
  • · Eastern style
The straddle has distinct advantage over the western roll and eastern style.
Techniques of high jump
  • The Approach
  • The Take-Off
  • The Clearance
  • The Landing
The Approach
The simples and most effective approach is a seven step approach. The first step of run is taken by the take-off foot. Starting point itself at seven steps away from the take-off point is the check mark.
The Take-Off
The most important technique at take off the foot plant, the take off foot is planted directly in the line of t6he run at 40 degree to the bar. It is heel-ball rocker action. During the rocker action the body weight is gradually moved forward over the take-off foot. An upward thrust is given to the body by bending the body slightly while the body weight is shifted forward by the rocker-action. A slight bend at the inner shoulders helps to shift centre of gravity of the body over the bend take-off foot. Then give vigorous extension to the take-off foot and exert upward drive by the other leg.
The Clearance
In the straddle clearance, the take-off leg trials behind up in Western Roll clearance the take-off leg is brought up in a bend position between the body and the clearance bar. In straddle clearance the competitor should straddle the bar on his stomach with the chest down, pulling his head back to look at a spot close to the take-off point.
The Landing
In straddle the athlete lands on the outer foot and the outside hand, and attempt should be made to let momentum roll in over into the pit.
Specification for pit for High Jump
Landing area- Length 5 metres, Width 4 metres
Distance between uprights- Minimum3.66 metres, Maximum 4.2 metres
Length of cross bar- Minimum 3.64metres, Maximum 4.00 metres
Weight of cross bar- Maximum 2 kilograms
Cross bar triangle- 30 Millimeters
Support for cross bar- Length 60 Millimeters, Width 40 Millimeters
Metal clip joining tow bars- 300 Millimeters
Rules of High Jump
  • The uprights or the posts shall not be moved during the competition unless the judges consider the take-off or landing ground has become unsuitable; such a change shall be made only after the round is completed.
  • The judged shall decide the height at which the competition shall start, and the different heights to which the bar will be raised at the end of each round.
  • An athlete fails in the competition if
In the course of jump he dislodges the bar so that it falls from the peg.
Or
He touches ground or landing area beyond the plane of the uprights without clearing the bar
Or
He takes off from both feet.

Pole vault
Pole Vault is excellent field event enjoyed equally by the competitors as well as the spectators. The event involves speed of a sprinter and agility and strength of a gymnast. It is essential that a vaulter has exceptional neuro-muscular coordination together with leg speed and arm and shoulder strength. It is observed that tall men with long arms make good vaulters.
Techniques of pole vault
There are eight basic techniques of Pole Vault
  • · The Grip
  • · The Carry
  • · The Run
  • · The Plant
  • · The Take-Off
  • · The Pull, Turn and Push
  • · The Clearance
  • · The Landing.
The Grip: To start with, an athlete should take a light Pole about 3.5 meters long. A beginner should make grip at about 2 meters and towards tapering end.
The Carry: The position of advancing towards the pit is called “The Carry”. Generally the pole is carried towards t6he right side. The front end of pole is kept roughly in level with the head by keeping the grip of the hand below the hips pressing down the pole and keeping both arms bent at the elbow.
The Run: The process of advancing with the pole is called “The Run”. The running distance is not fixed and is to be decided by the athlete on the basis on his experience.
The Plant: Putting the frond end of the pole into the planting box is known as “The Plant”. While lowering the front end of the pole for plant, the top hand changes position from guiding the pole to gripping and the rear end is moved upwards and forwards.
The Take-Off: The take-off is from directly underneath the top hand keeping the take-off foot facing straight towards the vault. After take-off the athlete should ride the pole hanging directly behind it.
The Pull, Turn and Push: While hanging directly behind the pole with legs bit low, give a swing to bring the hips in level with the shoulders. Next pull up the body taking advantage of the swing. Now the pole should come nearly to a vertical position, and vaulter is put to a hand stand position on the pole. At this stage the push-off starts and the athlete attempts at bar clearance.
The Clearance: When the vaulter has completed the push-off and extends the arms fully he releases the left hand from the pole and applies a final with the right arm before leaving the pole and legs over the bar.
The Landing: Landing depends up on the type of pit available. Normally an athlete should give a natural rotation to the body to make balanced landing on legs followed by a roll over.
Specification for pole vault
Landing area- Length: 5 metres, Width: 5 metres
Distance between uprights- Minimum 3.66metres, Maximum 4.32 metres
Length of cross bar- Minimum 3.86 metres, Maximum 4.52 metres
Weight of cross bar- Maximum 2.26 kilograms
Support for cross bar extension- 75 millimeters
Plant box- Length 1 meter
Width at frond end: 600 millimeters
Thickness metal sheet: 2.5 millimeters
Length of the sheet from the frond of the box towards stop board- 800 millimeters
Rules of pole vault
  • Any competitor may have the uprights moved in either direction, but they must not be moved more than 2 feet from the prolongation of the inside edge of the top the stop board.
  • The judges should make a re measurement to ensure there is no variation in height.
  • The take-off for the pole shall be from a wooden or metal box as per the specifications given earlier. The front edge of the box must be level with the run-up and finally fixed to the ground.
  • The pole may be of any material and any length of diameter, but the basis surface of the metal, must be smooth.
  • An athlete fails in the competition if-
  • In the course of a vault he dislodges the bar so that it falls from the pegs.
  • Without first having cleared the bar, he touches any part of his body, or the pole, the ground beyond vertical plane of the upper part of the stop board.
  • He makes three runs without completing the vault.
  • He leaves the ground to make a vault and fails to clear the bar.
  • He clears the bar himself but lets the pole go off and allows it pass under.
  • While he is making the vault after leaving the ground places his lover hand above the upper one or moves the upper hand higher up on the pole.

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