Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Development of the PDA Based Mobile System for Body Fat Measurement and Diagnosis Using Bioelectrical Impedance Method

체임피던스 방법을 이용한 PDA 기반의 휴대용 체지방 측정 및 진단 시스템 개발

  • 권세윤 (한양대학교 의공학교실) ;
  • 이상민 (한양대학교 의공학교) ;
  • 김재환 (한양대학교 의공학교) ;
  • 우지환 (한양대학교 의공학교) ;
  • 김인영 (한양대학교 의공학교) ;
  • 이형기 (삼성전자(주) 삼성종합기술원 HCI) ;
  • 방석원 (삼성전자(주) 삼성종합기술원 HCI) ;
  • 김선일 (한양대학교 의공학교실)
  • Published : 2004.02.01
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Abstract

Recently, many people want to know their state of health, such as a body fat rate, anywhere and anytime. The Personal Digital Assistance(PDA) is the portable wireless apparatus that has become widely popular. There are many application areas of the IDA to be in mobile care devices. In this study, we developed the PDA based body fat measurement system, composed of a cradle type measurement module and a WindowCE operated software module, a regression equation for predicting lean body mass (LBM). Sixty-three weight-stable subjects (53 men, 10 women) aged 20∼32yr participated in this study. A regression model, LBM ＝ (0.0005＊Height2 - 0.0160＊Impedance ＋ 0.3920＊Weight - 0.0684＊Age - 5.8141＊Sex ＋ 25.984, was found. The correlation coefficient( r) of body fat rate between developed system and HTM1000plus(BionetTM) was 0.928. HTM1000plus is a commercially available and approved by KFDA. These results indicated that developed system is reliable for estimation of body fat rate. Although developed system is the PDA based miniaturized, it shows good performance comparing with other commercial product.

최근 건강에 대한 관심이 증가함에 따라 많은 사람들은 일상생활 중 언제 어디서나 체지방과 같은 자신의 건강 상태를 지속적으로 확인하고 싶어한다. PDA(Personal Digital Assistance, 개인 휴대용 단말기)는 휴대용 무선 장치의 특성으로 인해 그 수요가 점점 증가하고 있으며 휴대용 계측 시스템으로의 응용이 가능하다. 본 연구에서는 PDA 크래들 형태의 측정 모듈 및 WindowCE 운영 체제를 사용하는 소프트웨어 모듈로 구성된 PDA 기반 체지방 측정 시스템을 제작하였다. 또한 20∼32세 사이의 63명의(남 53, 여 10) 건강한 피검사를 대상으로 임상 실험을 통해 제지방량 산출 선형 회귀식을 도출하였다 (제지방량(kg) : 0.0005＊신장$^2$ - 0.016＊인피던스 ＋ 0.3920＊체중 - 0.0684＊나이 - 5.8141＊성별 ＋ 25.984). 체지방 측정에 있어 본 연구에서 제작된 기기와 기존의 시판 중인 bionet사의 HTM1000plus (KFDA 승인) 기기와의 강호 상관 계수는 0.928로써 체지방 측정에 있어 본 기기의 신뢰성을 간접적으로 나타내었다. 이와 같은 결과는 본 연구에서 제작된 기기가 PDA 크래들 형태의 소형화 된 시스템임에도 우수한 성능을 보임을 알 수 있었다.

Keywords

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