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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: J Pediatr. 2011 Mar;158(3):499–504. doi: 10.1016/j.jpeds.2010.09.004

Figure 2.

Figure 2

Rapid standing (black lines) is compared with upright tilt (gray lines) to 70° in the same subject. The upper panel shows changes in blood pressure (BP) and the lower panel shows changes in heart rate (HR). There is a greater fall in BP and rise in HR with standing compared with tilt. Also, both BP and HR increase in anticipation of standing - a phenomenon called “central command”.