In most cases without sports and running preparation to run the semi-marathon or 21.1 km it won't turn out. At best it will turn out to pass partially on foot and to partially run this distance, and more – to pass on foot. The exception – genetically gifted runners.
Who can run the semi-marathon
If the person didn't train more than half a year or at all never ran more than 10 km, it won't manage to run 21.1 km. It is obvious to all.
If the person played sports: was engaged on exercise machines, floated, practiced gymnastics or yoga and also other sports – it won't be able to run even the half of the marathon distance too.
The only way to be prepared and overcome the semi-marathon – it is regular to run. Professional runners claim that for the running on the distance of 21.1 km there is enough 7 weeks of preparation. The chance to run the semi-marathon without preparation is, but damage to health will be caused enormous. Moreover, after such experiment of people will forever begin to hate run in all its manifestations.
What will if run the semi-marathon without preparation
First of all, it is necessary to pass often from run to walking. Even if the first kilometers were overcome at good pace, after the 10th – the 12th km of force will run low. The runner should drop into the walk or in general to stop for breath restoration. The remained kilometers, most likely, it is necessary to walk also in quite exhausted state.
Moreover, each stoppage and each transition from run to the step will add less forces, and it will be more difficult to return to run each time.
In the second turn, problems with foul of balance of ions and electrolytes will begin. This problem of all runners refusing food and drink at the distance. But for unprepared semi-marathoners – the common problem. Foul of balance of electrolytes leads to thermal control fouls, foul of balance of ions – to spontaneous defecation.
In the third turn, the unprepared athlete will begin to feel the pains in muscles of legs which are accruing with each kilometer and regularly passing into spasms. Sooner or later these pains will become wild and will begin to lead to the disorientation and dizziness. At the same time the runner withdraws on the first point of medical care.
Those who has obesity or flat-footedness most likely should finish the running at the traumatologist. Unexercised heart at the 20-km distance can suffer from heart failure, from arrhythmia and even from the heart attack.
In 1 hour of continuous run the unexercised organism for muscle work will take away glucose from blood, and it can lead to the faint. Skilled marathoners, that it didn't happen, resort to the help of nutritious gels. They won't help inexperienced people: the organism in the condition of the stress won't be able to acquire them.
The problem is that experienced long-distance runners separately train the organism on digestion of food during the stressful state. Moreover, many professionals quietly overcome big distances in general without food, though more slowly, than can.