Fig. 7. Polar plots showing the mean magnitude of peak inhalatory and exhalatory airflow of breaths occurring at different points in the stride cycle for Terrapene carolina. (A) Individual 01, (B) individual 02 and (C) individual 03. The magnitude of peak inhalatory (circles) and peak exhalatory (squares) airflow from the breaths in Fig. 6 were averaged into 20° bins and plotted (means ± 95% confidence limits) onto the stride cycle. Magnitude of peak airflow increases with the radius of the plot. The number of breaths varies for each bin (range 0-25) and can be estimated by comparison with the distribution in Fig. 6. Mean values of peak airflow rate are considered statistically significantly different (*) if the 95% confidence intervals do not overlap within a bin.