Earticle

초록

영어

Portable devices for providing energy expenditure information have been developed in the area of u-healthcare environment. The body consumes energy not only by body activities but also by voices such as talking and singing, however, current devices calculate energy expenditure values based on body activities only. This study was performed to estimate energy consumption caused by voices using PVDF vibration sensor. Sensing module for acquiring voice transmitted through bone, placed on the sternum area, was fabricated in house. Twenty six subjects were participated for the experiment for data collection while reading book and singing with the use of respiratory gas analyzer. Also, body movement was acquired using 3-axis accelerometer while walking and running on the treadmill with the use of gas analyzer, too. Parameters extracted from the voice signal and accelerometer outputs were compared with the actual energy consumption obtained from gas analyzer for finding linear regression equation. R-square values of voice signal and body activity signal were found to be 0.669 and 0.691, respectively, and the regression equations were established accordingly.

목차

Abstract
 1. Introduction
 2. Methods
  2.1. Experimental Design
  2.2. PVDF vibration sensor
  2.3. Data Acquisition and Analysis
 3. Results and Discussion
  3.1. Voice signals
  3.2. Activity signals
 4. Conclusions
 References

키워드

저자

• Jaejoong Im [ Division of Electronic Engineering, Chonbuk National University, Jeonju, Korea ]
• Chansong Hwang [ Division of Electronic Engineering, Chonbuk National University ]
• Youngchul Lim [ Division of Electronic Engineering, Chonbuk National University ]
• Soowan Chae [ Clinical Trial Center for Functional Foods, Chonbuk National University Hospital, Jeonju, Korea, Clinical Trial Center, Chonbuk National University Hospital, Jeonju, Korea, Dept. of Pharmacology, Chonbuk National University, Medical School, Jeonju, Korea ]
• Baikhwan Cho [ Dept. of Medical Nutrition Therapy, Chonbuk National University Hospital, Jeonju, Korea ]
• Eunkyung Choi [ Clinical Trial Center for Functional Foods, Chonbuk National University Hospital, Jeonju, Korea ]
• Jiyoung Yang [ Clinical Trial Center, Chonbuk National University Hospital, Jeonju, Korea ]
• Eunock Park [ Clinical Trial Center for Functional Foods, Chonbuk National University Hospital, Jeonju, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Bio-Science and Bio-Technology

• 간기

  격월간

• pISSN

  2233-7849

• 수록기간

  2009~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605