Originality: This work, which is part of a clinical approach uses a new method of swallowing study, described in A. Moreau-Gaudry's Medicine thesis : "Assets of the respiratory inductance plethysmography to the study of swallowing in geriatrics." The originality of this lies in the combination of Respiratory Plethysmography by inductance (RPI) to the informatic tool. The PRI allows continuous recording, thanks to a vest connected to a laptop, the patient's breathing rate. Readily available at the patient's bedside, it is non-invasive and perfectly suited to the fragility of the study population. The tool, by its automatic guarantees objectivity and reproducibility of the analysis of deglutitions from respiratory signal provided by the RPI.