Hemodynamic responses to posture change in elderly subjects

2014 Fiscal Year Final Research Report

• Project/Area Number: 25670987
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Gerontological nursing
• Research Institution: Tohoku University
• Principal Investigator: MARUYAMA Ryoko 東北大学, 医学(系)研究科(研究院), 教授 (10275498)
• Co-Investigator(Kenkyū-buntansha): KANNO Emi 東北大学, 大学院医学系研究科, 講師 (10431595)
• Research Collaborator: SASAKI Kounosuke 東北大学, 大学院医学系研究科 ; SATO Haruka 東北大学, 大学院医学系研究科 ; BAO Sarina 東北大学, 大学院医学系研究科
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 高齢者 / 体位変換 / 心拍変動 / 循環動態

Outline of Final Research Achievements

Little research has been conducted on age-related differences in autonomic nervous activity and circulation between the various recumbent positions. The purpose of the present study was to evaluate elderly subjects show differences in the autonomic nervous activity and circulation between the 3 positions (supine, right lateral decubitus, and left lateral decubitus position). We performed electrocardiographic measurements for 50 elderly subjects (63-85 years). No significant differences were observed in mean BP, low frequency HRV, high frequency HRV, and their ratio. However, in the left lateral decubitus position, HR was significantly lower than in the supine position. In contrast, the LF/HF ratio in the right lateral decubitus position was significantly lesser than that in the supine position the elderly .

Free Research Field

基礎看護学、環境生理学