Orthostatic Intolerance Is Independent of the Degree of Autonomic Cardiovascular Adaptation after 60 Days of Head-Down Bed Rest

<div>Heart rate (HR), systolic blood pressure (SBP), and diastolic arterial pressure (DAP) of 3 fainters (a, b, and c) 5 minutes before and 4 minutes after syncope during the positive HUTT after HDBR. Heart rate and blood pressure (BP) decreased together before the syncopal episode.</div>

BioMed Research International

fig4

Figure 4

Figure 4: Orthostatic Intolerance Is Independent of the Degree of Autonomic Cardiovascular Adaptation after 60 Days of Head-Down Bed Rest 