Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Dec 14;4(12):e0805. doi: 10.1097/CCE.0000000000000805

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of the Society of Critical Care Medicine.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

PMC Copyright notice

Figure 4. — Effects of the semirecumbent position (SRP) and prone position (PP) on inspiratory muscle effort. A, Dot plots and lines of the relative variation in the esophageal pressure swing (∆P_ES) during SRP and PP, which was computed as 100 × (end value–baseline value)/baseline value. The baseline of each period was normalized to the reference level (zero). The horizontal line indicates the median value. B, Scatter plot and regression analysis of the baseline ∆P_ES and the relative variation in ∆P_ES during the PP. The dashed lines indicate the 95% CI of the regression line. C, Dot plots and lines of the relative variation in the simplified esophageal pressure–time product per minute (sPTP_min) during the SRP and PP, which was computed as 100 × (end value–baseline value)/baseline value. The baseline of each period was normalized to the reference level (zero). The horizontal line indicates the median value. D, Scatter plot and regression analysis of the baseline sPTP_min and the relative variation in sPTP_min during the PP. The dashed lines indicate the 95% CI of the regression line.