In reality, the muscles do not make direct use of the energy sources that we have seen to be stored in our bodies,

but these are transformed into adenosine diphosphate (ATP) and by its subsequent division into adenosine diphosphate and Phosphorus (P + ADP) is released the energy needed for muscle contraction. After a workout, we have a depletion of reserves restored that are readily and often, with proper nutrition, energy reserves, do not return to the initial state, but at a higher level, with a higher capacity performance. Even through this mechanism, called super compensation, increase athletic performance.