Application of wireless inertial measurement units and EMG sensors for studying deglutition — Preliminary results

Different types of sensors are being used to study deglutition and mastication. These often suffer from problems related to portability, cost, reliability, comfort etc. that make it difficult to use for long term studies. An inertial measurement based sensor seems a good fit in this application; however its use has not been explored much for the specific application of deglutition research. In this paper, we present a system comprised of an IMU and EMG sensor that are integrated together as a single system. With a preliminary experiment, we determine that the system can be used for measuring the head-neck posture during swallowing in addition to other parameters during the swallowing phase. The EMG sensor may not always be a reliable source of physiological data especially for small clustered muscles like the ones responsible for swallowing. In this case, we explore the possibility of using gyroscopic data for the recognition of deglutition events.

[1]  Yoshiaki Yamada,et al.  Correspondence between food consistency and suprahyoid muscle activity, tongue pressure, and bolus transit times during the oropharyngeal phase of swallowing. , 2008, Journal of applied physiology.

[2]  A. Berthoz,et al.  Head stabilization during various locomotor tasks in humans , 2004, Experimental Brain Research.

[3]  Chunbao Wang,et al.  Development of a real-time IMU-based motion capture system for gait rehabilitation , 2013, 2013 IEEE International Conference on Robotics and Biomimetics (ROBIO).

[4]  Cumhur Ertekin,et al.  An electronic device measuring the frequency of spontaneous swallowing: Digital Phagometer , 2004, Dysphagia.

[5]  Salvatore Sessa,et al.  Development of the wireless ultra-miniaturized inertial measurement unit WB-4: Preliminary performance evaluation , 2011, 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[6]  Kiminori Sato,et al.  Human Adult Deglutition during Sleep , 2006, The Annals of otology, rhinology, and laryngology.

[7]  F. McConnel,et al.  Analysis of pressure generation and bolus transit during pharyngeal swallowing , 1988, The Laryngoscope.

[8]  Yoshiaki Yamada,et al.  Induction of the Swallowing Reflex by Electrical Stimulation of the Posterior Oropharyngeal Region in Awake Humans , 2012, Dysphagia.

[9]  Sheena Reilly,et al.  NON-INVASIVE MONITORING OF REFLEXIVE SWALLOWING , 1997 .

[10]  I. Aydogdu,et al.  The effect of head and neck positions on oropharyngeal swallowing: a clinical and electrophysiologic study. , 2001, Archives of physical medicine and rehabilitation.

[11]  Gerhard Tröster,et al.  Recognition of dietary activity events using on-body sensors , 2008, Artif. Intell. Medicine.

[12]  P J Kahrilas,et al.  Influence of bolus volume on swallow-induced hyoid movement in normal subjects. , 1988, AJR. American journal of roentgenology.

[13]  David N. Ku,et al.  A kinematic study of the oropharyngeal swallowing of a liquid , 1990, Annals of Biomedical Engineering.

[14]  L. Bartolomeo,et al.  Design of a wireless miniature low cost EMG sensor using gold plated dry electrodes for biomechanics research , 2013, 2013 IEEE International Conference on Mechatronics and Automation.