The more efficient muscle movements are implemented, the longer one can train. This is because the metabolites that cause tiredness of the muscles flow more slowly and the organism does not heat up so quickly. So it is definitely worth observing the economy of movement processes.
Let us assume that we are dealing with the body/organism as a stimulus/signal/impulse processing and self-regulating machine. Then body perception could be described as the result of all the stimulus/signal/impulse going in to calculation.
Motivation always describes a relationship to something. A motive is something that gives one an impulse to act. Hunger for example is a very stable motive and hunger motivates you to eat. The motivation is so strong that the action is carried out without great effort.
Chris McCormack triathlon worldchampion 2007 on the Ironman distance has said a terrific sentence: »Biestmilch is part of my everyday life as it is eating«. About modulation Chris said: »Training for me is modulation like Biestmilch«. Good food is essential to be able to retrieve peak performance. The cooking event is our contribution.