Position raised and a slight inclination towards ahead :
Inclining towards ahead seats in centers of a runner of the mass in the front part of the foot, which avoids to land in the heel and facilitates the use of the mechanism of means of the foot. Also it causes that it is easier for the runner of landing to avoid the foot in front of the center of mass and the resulting effect of braking. Although the raised position is essential, a runner must maintain a frame relaxed and use his base to maintain the position raised and stable. This aid to avoid injuries, as long as the body is rigid nor tense. The most common errors that they are inclining the chin upwards and wrinkling shoulders.

Stride appraises and the types:
the physiologists of the exercise have found that the rates of step are very consistent through the professional runners, between 185 and 200 passages per minute. The main difference between the runners of long and cuts distance is the length of the stride more than the rate of step.
During the march, the speed at which it moves the runner can calculate multiplying the cadence (passages per second) by the length of the stride. To run often is moderate in terms of rate in minutes by mile or kilometer. the rates of fast step agree with the type of arms one of the one pumps. The arms of the fastest one move above and down, in parallel with the body, faster it will be the stride rate. The different types from stride are necessary for different types from operation. When sprint, the runners to remain in its toes taking its legs in stop, with shorter strides and faster. Runners of long distance tend to have more relaxed steps than