ABC | Volume 114, Nº4, April 2020

Original Article Linhares et al. Hydrotherapy reduces arterial stiffness in pregnant women Arq Bras Cardiol. 2020; 114(4):647-654 Figure 1 – Reduction in the augmentation index adjusted for a heart rate of 75 bpm (Alx@75) (%) before and after a hydrotherapy session in the control (CG) and hypertensive (HG) groups. Before After p = 0.001 p = 0.024 Control Hypertensive Augnentation index 50 40 30 20 10 0 Table 2 – Longitudinal and intergroup comparison of the measures evaluated Variables Group Before After P Systolic blood pressure Control 112 ± 7.6 110.8 ± 10.3 0.404 Hypertensive 139.6 ± 12.1 130.1 ± 12.6 0.050 (mmHg) P < 0.001 < 0.001 Diastolic blood pressure Control 69.9 ± 6.9 70.1 ± 5.9 0.912 Hypertensive 85.6 ± 9.9 82 ± 5.5 0.160 (mmHg) P < 0.001 < 0.001 Mean blood pressure Control 89.3 ± 6.5 88.7 ± 7.5 0.625 Hypertensive 111.2 ± 9.6 103.5 ± 8.7 0.103 (mmHg) P < 0.001 < 0.001 Pulse pressure Control 41.6 ± 6.9 40.2 ± 7 0.320 Hypertensive 53 ± 9.4 47.9 ± 10.2 0.190 (mmHg) P 0.002 0.033 Central systolic blood pressure Control 102.9 ± 7.1 101.3 ± 9.3 0.276 Hypertensive 126 ± 9.9 119.7 ± 8.9 0.161 (mmHg) P < 0.001 < 0.001 Heart rate Control 91.4 ± 13.4 81.5 ± 12.6 < 0.001 Hypertensive 93.4 ± 11.8 82.4 ± 10.0 < 0.001 (bpm) P 0.650 0.819 PWV Control 5.1 ± 0.3 5.1 ± 0.4 0.469 Hypertensive 6 ± 0.4 5.8 ± 0.5 0.151 P < 0.001 0.001 AIx@75 (%) Control 29.1 ± 7.4 22.9 ± 6.6 0.001 Hypertensive 28.8 ± 7.3 22.4 ± 6.9 0.024 P 0.903 0.852 Note: The p values refer to Student's t test for paired samples in the columns and independent samples in the rows. PWV: pulse wave velocity (m/s); AIx@75: augmentation index adjusted for the heart rate of 75 bpm in %. 650