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Effects of posture change on heart rate variability in young healthy human.

Research Project

Project/Area Number 15592248
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fundamental nursing
Research InstitutionTohoku University (2005)
Hiroshima International University (2003-2004)

Principal Investigator

MARUYAMA Ryoko  Tohoku University, School of Medicine, Professor, 医学部, 教授 (10275498)

Co-Investigator(Kenkyū-buntansha) YAMAMOTO Machiko  Miyagi University, School of Nursing, Professor, 看護学部, 教授 (20295380)
SATO Tsuyako  Yamanashi University, Interdisciplinary Graduate School of Medicine and Engineering, Lecturer, 大学院・医学工学総合研究部, 講師 (30321136)
SUGIYAMA Toshiko  Tohoku University, School of Medicine, Associate Professor, 医学部, 助教授 (90271957)
WATANABE Ikue  Tohoku University, School of Medicine, Assistant Professor, 医学部, 助手 (30323124)
藤田 比左子  広島国際大学, 看護学部, 講師 (80315572)
川城 由紀子  広島国際大学, 看護学部, 助手 (20337108)
片山 富美代  広島国際大学, 看護学部, 講師 (70309649)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2003: ¥2,300,000 (Direct Cost: ¥2,300,000)
KeywordsDysphagia / heart rate variability / posture / 食事援助
Research Abstract

Patients with dysphagia were gradually increased, however, little is known of safety and comfortable head and body position while eating. Dysphagia may be associated many medical conditions. It is caused by any condition that affects the muscles and nerve used for swallowing.
A purpose of this study was to investigate the role of autonomic nervous system in patients with inability to swallow.
Ten healthy male university students (19-25 years) were measured continuously electrocardiogram and blood pressure during supine and sitting position (bed up 90 degree). Frequency domain analysis of stationary R-R interval was performed to quantify the high frequency (HF), low frequency (LF) to HF ratio (LF/HF) of heart rate variability (HRV). From supine position to sitting position systolic blood pressure (SBP) was decreased significantly, diastolic blood pressure (DBP), heart rate (HR) and LF/HF (sympathetic activity) increased. There was no significant change in parameter such as HF (parasympathetic activity). Similar changes were occurred to sitting position for bed up 45 degree.
We will measure both the electromyogram for suprahyoid and autonomic nervous function same time. Insight into this effect may lead to a understanding of safety and comfortable posture with patients with dysphagia.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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