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. 2019 Apr 2;10:342. doi: 10.3389/fphys.2019.00342

FIGURE 3.

FIGURE 3

The scatter plots show the results of the linear correlation analysis between cBRS estimates and the sine of the tilt table angles. Each circle represents the cBRS estimate computed in a subject in the assigned experimental condition. cBRS was estimated via SEQ (A,D), PRSA (B,E), and nPRSA (C,F) methods. The cBRS estimates were obtained by separately considering positive (A–C) and negative (D–F) SAP variations. The linear regression line (solid line) and its 95% confidence interval (dotted lines) are plotted only if the Pearson correlation coefficient is significantly different from 0 with p < 0.05.