Physiological Aspects of Swimming Training

There are reasons why the question may be more apt in swimming than other sports. Swimmers tend to be young; hence coaches are in the positions of psychological dominance and thus more easily able to drive their pupils. The ability to reach the top at an early age is a powerful spur to young swimmers. In C.I.T. cardiac output is likely to be one of the main limiting factors to reduction of the resting interval. The fact that swimming is performed in the horizontal plane will increase venous return and hydrostatic pressure will also help.