Touch the ground with your legs extended as far as possible forward and keeping the esquilibrio body.
Touching the ground with
heels on the same line and slightly apart to maintain balance.
The center of gravity should be brought forward
by rigorous inclination of the trunk and an energetic movement of the arms backward.
The heels touching the ground, knees
are folded, the trunk and the arms are thrown forward.
As soon as the center of gravity is in front of the body feet
falls forward.
The jumper should avoid all modes touch the ground closer to the arena than the marks made by the heels.
How to measure the long jump.
Sandbox and measurements.
Source: Athletics
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