During whole-body vibration therapy, your therapist will ask you to stand, sit, or lay on a machine supported by a vibrating platform. For example, they may ask you to stand in a half-squat position with your knees bent.
When the vibrations are transmitted to your body, they cause your muscles to contract and relax. Certain types of vibrations may also cause your body to produce more osteoblasts. These are cells that produce bone.
The direction and intensity of vibrations may determine how well vibration therapy works. Some machines produce only vertical vibrations. Others produce vibrations that go up and down, front and back, and sideways. Up and down vibrations are believed to be the most effective for producing rapid muscle contractions.