How does the Power Plate machine cause muscles to contract automatically?
The physiological principle behind the stimulation of muscles is extremely complicated. A slightly simplified explanation follows: due to the mechanical vibration produced by the Power Plate device, the body will react involuntarily. While standing on the Power Plate machine, the natural balance in the human body is disturbed thus numerous muscles are activated in order to recover the balance lost. By changing the angles of the joints and the position on the Power Plate platform, the muscles around the joint involved will stretch. This stretching is registered by the muscle spindles. These spindles are specialized muscle structures which send information about the muscle to the central nervous system. The signals received by the brain react with signals through the spinal cord and cause a reflex contraction of the muscles involved. The change of position is thus countered as soon as possible.
