To understand how vibrotherapy helps respiratory infections, let’s look at what vibration actually is.
Vibration is a mechanical oscillation characterized by a periodic change in force and acceleration over time. During the vibrotherapy process, vibrations are transmitted from the vibration source (the vibrotherapy apparatus), to the resonator (the human body or part of it – in our case, the lungs).
Vibrotherapy is commonly achieved by mechanical stimulation with a device capable of generating a vibratory stimulus characterized by certain parameters.
By appropriately setting the two main parameters of vibrotherapy - amplitude and frequency of vibration – and the application site, vibrotherapy can produce well-defined effects in the body.
High-frequency mechanical vibration (usually in the range of 7 to 15 Hz) applied to the chest area, causing its walls to oscillate, can facilitate the flow of mucus toward the central airways, thereby facilitating expectoration of sputum and can be used to minimize retention of lung secretions and maximize oxygenation. It has been shown that they can reduce dyspnoea and improve lung function.