Sensors 2012, 12(12), 17620-17632; doi:10.3390/s121217620
Article

A Wireless Accelerometer-Based Body Posture Stability Detection System and Its Application for Meditation Practitioners

1,2email, 3email, 4email, 5,†email and 6,†,* email
Received: 19 October 2012; in revised form: 12 December 2012 / Accepted: 12 December 2012 / Published: 18 December 2012
(This article belongs to the Special Issue Medical & Biological Imaging)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The practice of meditation has become an interesting research issue in recent decades. Meditation is known to be beneficial for health improvement and illness reduction and many studies on meditation have been made, from both the physiological and psychological points of view. It is a fundamental requirement of meditation practice to be able to sit without body motion. In this study, a novel body motion monitoring and estimation system has been developed. A wireless tri-axis accelerometer is used to measure body motion. Both a mean and maximum motion index is derived from the square summation of three axes. Two experiments were conducted in this study. The first experiment was to investigate the motion index baseline among three leg-crossing postures. The second experiment was to observe posture dynamics for thirty minute’s meditation. Twenty-six subjects participated in the experiments. In one experiment, thirteen subjects were recruited from an experienced meditation group (meditation experience > 3 years); and the other thirteen subjects were beginners (meditation experience < 1 years). There was a significant posture stability difference between both groups in terms of either mean or maximum parameters (p < 0.05), according to the results of the experiment. Results from another experiment showed that the motion index is different for various postures, such as full-lotus < half-lotus < non-lotus.
Keywords: KW = Posture Stability; wireless tri-Axis accelerator; meditation; leg crossing
PDF Full-text Download PDF Full-Text [373 KB, uploaded 21 June 2014 05:21 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Chang, K.-M.; Chen, S.-H.; Lee, H.-Y.; Ching, C.T.-S.; Huang, C.-L. A Wireless Accelerometer-Based Body Posture Stability Detection System and Its Application for Meditation Practitioners. Sensors 2012, 12, 17620-17632.

AMA Style

Chang K-M, Chen S-H, Lee H-Y, Ching CT-S, Huang C-L. A Wireless Accelerometer-Based Body Posture Stability Detection System and Its Application for Meditation Practitioners. Sensors. 2012; 12(12):17620-17632.

Chicago/Turabian Style

Chang, Kang-Ming; Chen, Sih-Huei; Lee, Hsin-Yi; Ching, Congo T.-S.; Huang, Chun-Lung. 2012. "A Wireless Accelerometer-Based Body Posture Stability Detection System and Its Application for Meditation Practitioners." Sensors 12, no. 12: 17620-17632.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert