Good Vibrations Shoes employs 2 areas of science of vibration applied to the feet. Vibrations are actually sound waves and are measured in frequency and amplitude. Amplitude is the volume and frequency is the amount of vibration in a given time.
The first area addresses circulation enhancement. We know that vibration of certain frequency as well as manual massage warm the skin. While some effect is attributable to friction, most warmth is the result of increased circulation to the muscles of the feet. Vibration of certain frequencies, not high and not too low stimulate small muscle activity. This activity causes demand for energy fuel from the citric acid cycle (also known as the Kreb's Cycle.) While cellular chemistry is complicated, it is more easily expressed that the result is more fuel, more oxygen and the discharge of lactic acid in the muscle. Lactic Acid is the by-product of this cycle and is responsible for muscle pain (cramps) when it remains in the muscle. So it is best if it is "pushed out" of the muscle during the energy cycle. With increased fuel and oxygen comes warmth that can relieve tired, achy cold foot symptoms.
The second area is balance improvement. Once again, vibration of a certain frequency, in this case 60 hertz stimulates specific small nerve cells on the bottom of the feet. The somatosensory system informs us about objects in our external environment through touch (i.e.: physical contact with the skin) and about the position and movement of our body parts (proprioception) through the stimulation of muscle and joints. The somatosensory system also monitors the temperature of the body, external objects and the environment, and provide information about painful, itching and tickling stimuli. This system has proprioceptors (pacinian corpuscles) in the bottom of the feet that have a tendency to become dormant (sleep) as we age. Vibration stimuli have been demonstrated to wake them up. The proprioceptors communicate with the internal ear balance organs (vestibular organs) and eye-sight to create balance awareness. So by stimulating the proprioceptors in the feet, it is possible to help improve balance in the older adult and thus serve as an adjunct abatement to balance loss and falling.