Deep oscillation is a therapeutic technique used in physiotherapy and rehabilitation and involves the application of electrostatic fields to the body using a handheld device or specialized equipment. In contrast to externally applied, mechanical forms of therapy, the effect of deep oscillation takes place in the tissue itself and works through the entire depth of the tissue. It can be applied to various body parts, such as muscles, joints, or connective tissues. Deep Oscillation is a unique, internationally patented, non-invasive and non-traumatic therapy method that utilizes low-frequency vibrations to create a gentle and deeply penetrating effect on the tissues. By using attraction and friction, electrostatic impulses set the treated tissue into pleasant vibrations with a deep biological effect, without the use of external mechanical forces. This makes Deep Oscillation an extremely gentle and produce deep-acting effect on all tissue components (skin, conductive tissue, subcutaneous fatty tissue, muscles, blood and lymph vessels).