Mechanical Bed for Investigating Sleep-Inducing Vibration
Joint Authors
Inou, Norio
Kuramoto, Akisue
Inui, Yuma
Kimura, Hitoshi
Source
Journal of Healthcare Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-09
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
In running cars or trains, passengers often feel sleepy.
Our study focuses on this physiological phenomenon.
If a machine can reproduce this phenomenon, it is feasible to put a person, such as an insomnia patient or an infant, to sleep without any harmful effects.
The results of our previous study suggest that low-frequency vibration induces sleep.
This report describes a new mechanical bed for inducing sleep and discusses the effects of different vibration conditions.
The new bed has two active DOFs in the vertical and horizontal directions to examine the anisotropy of sensation.
The bed includes three main parts: a vertical driver unit, a horizontal driver unit, and a unique 2-DOF counterweight system to reduce driving force and noise.
With regard to motion accuracy, the maximum motion error in the vertical direction lifting 75 kg load was only 0.06 mm with a 5.0 mm amplitude of a 0.5 Hz sinusoidal wave.
The results of excitation experiments with 10 subjects showed a significant difference in sleep latency between the conditions with vibration and without vibration.
Furthermore, the average latency with insensible vibration (amplitude = 2.4 mm) was shorter than that with sensible vibration (amplitude = 7.5 mm).
These results suggest the ability of appropriate vibration to induce sleep.
American Psychological Association (APA)
Kimura, Hitoshi& Kuramoto, Akisue& Inui, Yuma& Inou, Norio. 2017. Mechanical Bed for Investigating Sleep-Inducing Vibration. Journal of Healthcare Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1180851
Modern Language Association (MLA)
Kimura, Hitoshi…[et al.]. Mechanical Bed for Investigating Sleep-Inducing Vibration. Journal of Healthcare Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1180851
American Medical Association (AMA)
Kimura, Hitoshi& Kuramoto, Akisue& Inui, Yuma& Inou, Norio. Mechanical Bed for Investigating Sleep-Inducing Vibration. Journal of Healthcare Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1180851
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1180851