title: Methods for assessment of effects of habitual exercise on the autonomic nervous function using plethysmogram.
abstract: The present paper has proposed two methods for obtaining the linear correlation of the baroreflex system without measurement of blood pressure. One is based on the pulse wave transit time which needs both the electrocardiogram and the photoplethysmogram. The other is based on the photoplethysmogram only. The results from the experiments showed that the effect of habitual exercise and the Valsalva maneuver can be verified quantitatively. The proposed methods are possible to be used for a test of the autonomic nervous function at home.
authors.affiliation: Research Division on Advanced Information Technology, Cyberscience Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan. yoshizawa@isc.tohoku.ac.jp
authors.forename: Makoto
authors.initials: M
authors.lastname: Yoshizawa
authors.forename: Norihiro
authors.initials: N
authors.lastname: Sugita
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Yambe
authors.forename: Satoshi
authors.initials: S
authors.lastname: Konno
authors.forename: Telma Keiko
authors.initials: TK
authors.lastname: Sugai
authors.forename: Makoto
authors.initials: M
authors.lastname: Abe
authors.forename: Noriyasu
authors.initials: N
authors.lastname: Homma
mesh_terms: D000328:Adult; D001341:Autonomic Nervous System / Q000502:physiology*; D017704:Baroreflex / Q000502:physiology*; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D017156:Photoplethysmography / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity