“Considering the time necessary for the effects to show up, we, by analogy with other physiological literature, have observed “conditioning” improvements after a very short training period (1-2 weeks). These short-term changes are rather due to a better neuromuscular and vascular control (a more efficient metabolism, blood flow distribution and use of muscle fibers) than to changes in the muscle structure and will therefore be lost quickly with inactivity. Stable or longer lasting adaptations involve the remodeling of the muscle, such as the enhancement of the mitochondria content or an increase of capillaries, and require, therefore, much longer and continuous training periods.”