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	Windkesselモデル	心拍変動
分野	バイオメカニクス	バイオメカニクス
系統	Process / pipeline	Process / pipeline
提唱年	1969	1996
提唱者	Nikolaos Westerhof	Task Force of European Society of Cardiology
種類	Physiological lumped-parameter modeling	Time-series and frequency-domain analysis pipeline
原典	Westerhof, N., Bosman, F., De Vries, N. C., & Noordergraaf, A. (1969). Analog studies of the human systemic arterial tree. Journal of Biomechanics, 2(2), 121-143.	Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. (1996). Heart rate variability: standards of measurement, physiological interpretation, and clinical use. Circulation, 93(5), 1043-1065.
別名	Elastic chamber model, Arterial compliance model, Lumped parameter model	HRV, RR interval analysis, Cardiac variability
関連	3	3
概要	The Windkessel model is a lumped-parameter representation of the arterial system that captures the pulsatile dynamics of blood flow and pressure using simple mechanical analogs (resistors and capacitors). Named after the German word for air chamber, it was formalized by Westerhof and colleagues in the late 1960s and remains fundamental to understanding arterial hemodynamics and blood pressure regulation.	Heart rate variability (HRV) analysis quantifies the variation in time intervals between consecutive heartbeats as a window into autonomic nervous system function and cardiovascular health. Formalized by the European Society of Cardiology Task Force in 1996, HRV metrics are now standard in cardiology, physiology, and sports science for assessing stress, recovery, and disease risk.