シオザワ　トモキ   SHIOZAWA Tomoki   塩澤　友規    所属   青山学院大学  経営学部 経営学科    職種   教授
言語種別	英語
発行・発表の年月	2007/03
形態種別	単行本（著書）
査読	査読あり
標題	A New Concept of Cerebral Autoregulation Using Mathematical Expressions.
執筆形態	共同
出版社・発行元	Frontiers of Computetional Science (Springer-Verlag,Heiderberg)
巻・号・頁	pp.327-331
総ページ数	5
担当区分	筆頭著者
著者・共著者	*Shiozawa TY, Takada H, Miyao M.
概要	Summary. Stress was induced by graded head-up tilt (HUT) in 13 healthy subjects, and their beat-by-beat values of cerebral blood flow velocity (CBV) [cm s−1] and arterial blood pressure (ABP) [mmHg] were measured. Low frequency (LF: 0.07–0.2 Hz) and high frequency (HF: 0.2–0.4 Hz) transfer function gains (TFGs) [(cm s−1)/mmHg] were calculated to assess the dynamic cerebral autoregulation (DCA). By mathematically expressing the transition of DCA during the HUT, a new concept of cerebral autoregulation was discovered. This type of cerebral autoregulation rapidly leads DCA to a differen stationary state after exposure to a sudden change in the gravitational load