Interrelation between sensitiveness of kinestetic analyser and human psychomotoric behaviour is described. There were 101 examinees 8-15 years old. Positive correlation was found between the sensitiveress of kinestetic analyser and rapidity of motoric skills mastering. This interrelation becomes stronger as a result of ontogenetic process. The data of presented experimental study can be used in practical choise of children and adolescents for sports training.