Vibroacoustic therapy, usually shortened to VAT, is a non-invasive modality that delivers low-frequency sound vibrations, typically between 30–120 Hz, directly into the body through transducers embedded in a bed, chair, mat, or handheld device. The sound is almost always sinusoidal, and it is often paired with therapeutic music so that the patient hears the music above the audible range and feels the low frequencies through bone, tissue, and the sensory nervous system at once (Bartel & Mosabbir, 2021; Kantor et al., 2022).
In practice, a session lasts between twenty and forty-five minutes. The patient lies down or reclines. The device plays a tone, or a composition built on tones, at a chosen therapeutic frequency. The most commonly studied and recommended frequency is 40 Hz, especially for pain, Parkinson's motor symptoms, and cognitive work in older adults (Bae et al., 2025; Mosabbir et al., 2020).
VAT sits at the intersection of music therapy, physical medicine, and integrative neurology. It is studied. It is taught. It has a small but real research base. It is also easy to dismiss at a glance, and part of the purpose of this site is to give the evidence the careful reading it deserves.