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Respiratory Sinus Arrhythmia: How Breathing Paces the Heart (2D)

A 2D companion lab: scrolling breathing and heart-rate traces show how heart rate climbs on inhale and falls on exhale, and how slow breathing near the baroreflex resonance amplifies the swing.

Medical Technology & Imaging Physics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion drives the same baroreflex-lag heart-rate model as the 3D lab through two scrolling strip charts instead of a rotating scene: a top trace plots the breathing waveform, a bottom trace plots instantaneous heart rate, and a pulsing heart icon tracks the beat live — so the rise on inhale and fall on exhale, and the amplification near the ~6 breaths/min resonance, are read directly off the lines rather than watched as pulsing 3D shapes.

⚙ Under the hood

Scrolling breathing and heart-rate strip charts driven by a lagged sinusoidal RSA model, with adjustable breathing rate, vagal-tone gain and simulation speed.

respiratory sinus arrhythmiavagal tonebreathingheart rateautonomic nervous systembiofeedback

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install