Whether the athlete is high-level or Sunday, it is not immune to a cramp: an involuntary contraction of the muscle, painful, which lasts a few moments and it is often possible to pass gently stretching the muscle.
To better prevent these cramps, it is imperative to be well hydrated, do not skimp on warm-up before exercise and do muscle stretching at the end of each training session. The equipment and sports equipment used must be adapted. It is important not to tense on a movement, always find the right position.
A contracting muscle allows movement; he needs oxygen to work properly, otherwise he is in anoxia (not enough oxygen). The cramps are due to the involuntary contraction of one or more muscles belonging to the same group (ensuring the same movement). This sudden and intense contraction of the muscle can be due to several causes.
Cramps can occur at any time of the day, more commonly after physical exertion or sometimes without effort before ... They can be the result of a deficiency of iron, magnesium, calcium or others but also that of an exaggerated solicitation of the muscle.