Means, standard deviation (SD), <i>p-</i>values, and direction of change for breathing parameters during control and chest compression conditions for both male and female groups.

Diaphragm amplitude is normalized to maximum of control and shown as a percentage. Respiratory rate (RR) was calculated as number of cycles within a 30 second period multiplied by 2. Reported p-values are from Student’s paired t-test. Significance is bolded at p-values ≤ 0.05 and p-values indicating trends towards significant of 0.05 < x ≤ 0.07 are italicized.