physical education lessons at school are important for the proper formation of the child and his or her health.
However, not all children under the average load power, designed for training in gym.
Some health condition forced to attend lessons on simplified physical training.
Swimming - one of the most popular sports.
Although, if only because many know how to swim, and splash about in the pool wishing rife.
However, one thing to swim for pleasure, the other - to engage in this sport seriously, with the expectation of higher rank and prestigious awards.