ABC | Volume 110, Nº1, January 2018

Original Article Liporaci et al Effects of tilt test in healthy subjects Arq Bras Cardiol. 2018; 110(1):74-83 0.16 0.20 0.15 0.14 0.12 0.10 0.10 0.08 0.06 0.30 0.25 0.20 0.15 0.05 0.10 0.30 0.30 0.35 0.25 0.25 0.20 0.20 0.20 0.15 0.15 0.15 0.05 0.05 0.05 0.1 0.2 0.3 0.10 0.10 0.10 0.14 0.16 0.12 0.10 0.08 0.06 0.04 0.05 1 2 3 Time 1 2 3 Time 1 2 3 Time 1 2 3 Time 1 2 3 Time 1 2 3 Time 1 2 3 Time 1 2 3 Time rES rMG lMG lES rRA rTA lTA lRA Figure 8 – Comparison of electromyographic activity of all muscles between the Active Standing Test (white) and the Head-Up Tilt Test (grey) during the Pre- Valsalva maneuver (VM) (1), VM (2) and post-VM (3). : p < 0.05. 80