Figure 6

Respiratory protocols in TTSR and TTCR. Representative examples of respiratory signal x_R(t) as well as its TF spectrum from (a) TTCR; (b) TTSR. Signal segments were recorded in supine position. (c), (d): circles and bars represent medians and the interquartile ranges of median respiratory rate ($f_{\text{R}}^{\text{(med)}}$) and interquartile range of respiratory rate ($f_{\text{R}}^{\text{(IQ)}}$), during supine and head-up positions for both TTSR and TTCR data-sets