How does the vibration platform cause the muscles to contract automatically and intensely?
Each muscle can perceive and record the smallest of changes in its own length through receptors. The vertical vibrations trigger a muscular stretch which is perceived by the receptors, resulting in a reflex contraction in the muscle in question, and causing the antagonist muscle, i.e. the opposite muscle, to relax. Your body reacts to the force generated by acceleration and not by additional mass. This force is far stronger than traditional stimulation caused by training, quite simply because the stimulation is repeated between 30 and 40 times.