Because the beauty of the human body is that it hasn't a single muscle which doesn't serve its purpose; that there's not a line wasted; that every detail of it fits one idea, the idea of a man and the life of a man.
The bicycle is the perfect transducer to match man's metabolic energy to the impedance of locomotion. Equipped with this tool, man outstrips the efficiency of not only all machines but all other animals as well.
They throw their clubs backwards, and that's wrong. You should always throw a club ahead of you so that you don't have to walk any extra distance to get it.
The higher your energy level, the more efficient your body The more efficient your body, the better you feel and the more you will use your talent to produce outstanding results.
The more relaxed the muscles are, the more energy can flow through the body. Using muscular tensions to try to 'do' the punch or attempting to use brute force to knock someone over will only work to opposite effect.
A runner's stride is not perfectly efficient.
