The hyperventilation syndrome is a quite frequent pathology, affecting up to 10% of the general population and 40% of the asthmatic population. Its physiopathology is still badly known and even if it is a benign affection, its associated comorbidities and symptomatology greatly decrease the patients' quality of life. Yet, no medicinal treatments have been proved useful, but prescribers noticed improvements after physiotherapy. Given that the physiotherapy impact on hyperventilation syndrome is not well described in the literature, this study aims to scientifically ascertain physiotherapy benefits on quality of life and symptomatology in hyperventilation syndrome-suffering patients.