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Schematic protocol and timing of tests. Upper panel: tilt angle, starting in the supine position, followed by 30° HUT, 4 periods of sinusoidal tilt (SinTilt) between 0° and 60°, and a period of 70° HUT. Middle panel: timings of the three paced breathing periods in each of the three fixed body positions plus the paced respiration during the SinTilt period. Lower panel: data parts where resting cerebral autoregulation was calculated.
