Fig. 2

A family of C_rs and R_rs functions (n = 14). Each function was generated at different times (t_k) measured sequentially at 32 ms during a single insufflation. The intersection of these functions defines C_rs = 32.8 mL·cmH₂O ⁻¹ and R_rs = 23.8 cmH₂O·s· L⁻¹ for the breath. Shown in the inset graph is the uncertainty associated with the intersection point, likely the result of measurement limitations or minute alterations in C_rs and R_rs during insufflation. Accordingly, the point of intersection is best defined by the smallest standard deviation (σ) of all C_rs values measured at each R_rs increment along the R_rs axis