Lung mechanics were analysed with the mixed model procedure followed by correction for false discovery rate (FDR). To evaluate lung mechanics from the groups lowV T RM60 and PEEP6_RM60 in a linear model, one time point every 60 minutes before and one after RM were analyzed separately, resulting in two separate linear slopes (lowV T RM60a and PEEP6_RM60a: before RM, lowV T RM60b and PEEP6_RM60b: after RM). BoxCox transformation was performed to achieve homoscedasticity and normal distribution, when necessary. Analyses of parametric data were carried out with One-Way Analysis of Variance and FDR correction. Non-parametric data were analysed with the Kruskall-Wallis test followed by Dunn's post-test. Data in figures are shown as mean 6 standard error of the mean (SEM). P-values,0.05 were considered as significant. Statistical analyses were carried out with JMP 7 or SAS 9.1 software (SAS Institute Inc., Cary, NC, USA).