Figure 3.

A–C) HR of animals 644 (A), 668 (B), and 672 (C) during tilts at various angles. D) A tilt angle of 90° (red traces) induced VVR in all 3 animals, tilt of 70° induced VVR in rat 644, and tilts <70° did not induce VVR in any of the 3 animals.