Fig. 2From: The effect of transcutaneous neuromuscular electrical stimulation on laryngeal vestibule closure timing in swallowinga & b Videoflouroscopic still frames showing the supraglottic air space and hyoid position prior to stimulation (2a) and during stimulation (2b) of the submandibular muscles. In 2b, the supraglottic air space has increased in volume due to an anterior pull emanating from tissue movement elicited by the NMES. When an individual swallows while the stimulation is on, this anterior pull on the laryngeal vestibule acts as a resistance to contraction, providing a perturbation to the movementBack to article page