Vibroacoustic therapy (VAT) applies low-frequency sound vibrations (often 20–120 Hz) directly to the body, through transducers built into a chair, mattress or table. It combines auditory stimulation with deep tactile stimulation.
A dual sensory channel
Beyond hearing, low frequencies are felt as vibrations by cutaneous and deep mechanoreceptors. This additional somatosensory input may explain effects distinct from listening alone, notably on muscle relaxation and body perception.
Autonomic markers
Several studies assess VAT’s effect on heart-rate variability (HRV), an index of sympathetic/parasympathetic balance. Increases in the high-frequency component (reflecting vagal tone) have been reported during or after sessions, consistent with a shift toward a parasympathetic state.
Studied applications
- Reducing anxiety and muscle tension
- Supporting pain management (fibromyalgia, musculoskeletal disorders)
- Promoting relaxation in palliative care or rehabilitation
Limits and prospects
As with other sound approaches, protocols lack standardisation (frequency, amplitude, duration, transducer placement) and samples remain modest. Contraindications (implanted cardiac devices, certain conditions) must be respected. Still, VAT appears a promising modality for modulating autonomic state, warranting rigorous controlled trials.
Sources & références
Campbell E.A. et al., "Vibroacoustic treatment and its effects: a systematic review", 2017–2021.
Bartel L., Mosabbir A., "Possible Mechanisms for the Effects of Sound Vibration on Human Health", Healthcare, 2021.
Cet article est fourni à titre informatif et ne remplace pas un avis médical professionnel.