Recently placed intrauterine devices or pins.Recent implants (joint/corneal/cochlear, etc.).Registered equipment manufacturers have identified a number of whole body vibration therapy contraindications and suggest that individuals who have one of the following conditions should not partake in WBV training: Whole Body Vibration Therapy Plate Contraindications Frequencies between 20 and 70 Hz are the recommended safety range.Studies that demonstrate improvements in muscle strength and size using WBV have employed frequencies of 25 to 45 Hz (2,11-19).A WBV platform provides several different vibration frequency and magnitude options.The platform oscillates over a central fulcrum, intended to simulate how humans walk. These platforms do not have a uniform displacement. Oscillatory alternating displacements.On such platforms the entire platform moves uniformly. Direction of the VibrationĪ number of different WBV platforms are commercially available (5-9), and they provide a vibratory stimulus in one of two ways: Standing straight will enhance the ability of the vibration to move up the legs through the hip and spine, whereas a relaxed stance (i.e., bent knees) will decrease the ability of the vibration to move past the hips. Acceleration describes how quickly the motion exists in each direction (in gravitational units, where 1.0 g = 9.81 m/s 2),.Magnitude of a vibration stimulus is a combination of amplitude and acceleration. Amplitude describes how much motion exists in each direction (in millimetres). Magnitude vibration measured as amplitude.The six variables of a vibration platform that affect your bones are: The Six Variables for Vibration Plate Therapy The intensity level contributes significantly to the whole body vibration therapy contraindications. You want to make sure that the intensity is within an acceptable range to benefit the user while not causing harm. The essential ingredient is the intensity of the vibration.The combination of a mechanical load and Whole Body Vibration exposure may stimulate larger increases in growth hormone than mechanical load alone. Whole Body Vibration has been shown to acutely alter testosterone and growth hormone levels (2, 3). Whole Body Vibration may also influence bone building indirectly via a hormonal response.Consequently, bone may respond to the applied forces generated during muscle contractions from a tonic vibration reflex. The tonic vibration reflex has been reported to be activated continuously during Whole Body Vibration so that the muscles continue to contract and relax until the stimulus stops (1). This theory proposes that movement of the vibration plate generates a “tonic vibration reflex,” similar to the stretch reflex. Like physical activity, Whole Body Vibration activates receptors in bone and stimulates bone building.This article was last updated on ApTheories on How Whole Body Vibration Affects Bone
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