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Deglutition

Deglutition

Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...

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Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification

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Published on: February 14, 2018

Soft Electronics Enabled Ergonomic Human-Computer Interaction for Swallowing Training.

Yongkuk Lee¹, Benjamin Nicholls², Dong Sup Lee¹

¹Department of Mechanical and Nuclear Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.

Scientific Reports

|April 22, 2017

Summary

We developed a new skin-friendly electronic system for swallowing training in dysphagia rehabilitation. This ergonomic system uses soft electrodes for comfortable, high-fidelity recording, demonstrating clinical feasibility for patients.

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Area of Science:

Biomedical Engineering
Rehabilitation Technology
Human-Computer Interaction

Background:

Dysphagia rehabilitation requires effective swallowing training methods.
Existing rigid electrodes for swallowing training present comfort and adherence issues.
Need for ergonomic and high-fidelity biofeedback systems in dysphagia management.

Purpose of the Study:

To introduce a skin-friendly electronic system for human-computer interaction (HCI) in dysphagia rehabilitation.
To develop a soft, compliant electrode for ergonomic and comfortable swallowing training.
To assess the clinical feasibility of this novel system for biofeedback-enabled rehabilitation.

Main Methods:

Utilized a soft, skin-like electrode with an open mesh microstructured sensor and elastomeric membrane.
Performed mechanics modeling and experimental quantification of the sensor's ultra-elastic properties.
Conducted in vivo studies to evaluate the system's functionality for HCI-enabled swallowing training and biofeedback.

Main Results:

The skin-like electrode provides conformal, comfortable, long-term wearable, and high-fidelity electromyogram recording.
Mechanics modeling accurately captured the sensor's elastic characteristics.
In vivo studies confirmed the system's effectiveness in detecting swallowing behavior for biofeedback.

Conclusions:

The developed skin-friendly electronic system offers an ergonomic solution for HCI in dysphagia rehabilitation.
The soft electrode technology addresses limitations of existing rigid electrodes.
Results demonstrate the clinical feasibility of this technology for improving swallowing training and patient outcomes.