Impact vibration
Introduction
Vibropressure or vibropercussion is a term used to describe a technique that combines mechanical vibrations and pressure (loaded vibration) applied to a surface "Surface (topology)") or tissue. It consists of the application of oscillatory forces or mechanical vibrations in a specific direction on an object or area, generally with the aim of obtaining certain beneficial effects or performing specific tasks in different fields, such as engineering and medicine, among others.
Utility
Some fields in which vibropressure applications are used are the following:
In modern mechanical engineering, vibrations play an extremely important role. Even with small varying loads, lack of proper vibration or dynamic stability analysis can lead to irreversible damage. The use of modern solutions, such as the implementation of piezoelectric elements, properly selected shock absorbers, specially designed heads in long loaded systems or heat treatments that improve the internal structure of the material, makes it possible to design modern and durable structures.[5].
The vibrations of molecules propagating in an elastic medium create mechanical waves. The analysis of this phenomenon in continuous media allows the creation of modern structures such as phonic crystals or metamaterials, which, thanks to their unique properties (the presence of a phonic gap), lead to the design of devices that control the way energy is transferred in an elastic medium. This creates the possibility of manufacturing devices such as acoustic diodes, waveguides, selective filters, mechanical wave mirrors and many others.[5].
In therapeutics, vibropressure uses mechanical resonance, resonance frequency and the ability of mechanical vibrations to interact with the anatomical structures of the human body, taking advantage of the biomechanical and viscoelastic properties of tissues to achieve beneficial effects on health and recovery.
Fascia, vibropressure and vibropercussion
Non-invasive mechanical wave percussive massage therapy is used to treat conditions related to myofascia. The effect of vibropercussive massage therapy on the morphology of the thoracolumbar fascia has been investigated in healthy men.[6] The results show that a 15-minute vibropressure or vibropercussion massage with a frequency of 30 Hz in the back region can reduce the intensity of the echo and the perceived stiffness in the thoracolumbar fascia, in addition to increasing skin temperature in healthy men.[6] Morphofunctional validation studies combining electrostimulation using paired impulses together with percussive vibromassage for the treatment of patients with lesions in the peripheral nerves of the extremities, which are often correlated with myofascial entrapments,[7] have shown effectiveness.[8] The clinical use in orthopedics of mechanical vibration therapy has been proven.[9] The therapeutic effect of mechanical wave vibrations and percussion therapy have shown therapeutic potential to restore muscle function and reduce rigidity.[10].