Table 7.

Difference in the upper or lower 95% LOA for breath‐by‐breath data that are detectable with 80% powera (repeatability cohort)

Tidal breathing parameters	REST1 versus REST2	Combined REST versus POST‐CST
RR (brpm)	1.1	1.7
tI (sec)	0.2	0.2
tE (sec)	0.2	0.2
tTot (sec)	0.3	0.2
tI/tE	0.14	0.15
tI/tTot	0.04	0.04
IE50	0.5	0.45

brpm, breaths per minute; IE50, inspiratory to expiratory flow ratio at 50% tidal volume (or SLP equivalent); LOA, limits of agreement; POST‐CST, post exercise measurement session; REST1, resting breathing measurement session 1; REST2, resting breathing measurement session 2; RR, respiratory rate; tE, expiratory time; tI, inspiratory time; tI/tE, inspiratory/expiratory time ratio; tI/tTot, duty cycle; tTot, total breath time.

^aMinimum detectable change using the current sample (80% power) and the breath‐by‐breath parameters.