Figure 2.
Maximal transdiaphragmatic pressure (Pdimax) generated during bilateral phrenic nerve stimulation in 24 (n = 7), 27 (n = 7), and 30 (n = 8) month old female (F; closed circle) and male (M; open triangle) C57BL/6 × 129 mice. Data points are the average Pdimax amplitude from each animal. Boxplot represents median, 25th and 75th percentile and whiskers 10th and 90th percentiles. Data were analyzed by a mixed linear model with animal as a random effect (age × sex × animal); no effect of age (p = .92), sex (p = .56), or interaction (p = .92)