BP	Breathing pattern
BR	Breathing rate, respiratory frequency (breaths per minute, bpm)
BRV	Breathing rate variability (%)
CM	Cosmed Quark spirometer
ds	Duty cycle, breath ratio (inhale time/breath cycle time) (%)
FN	False negative
FP	False positive
FR	Flow reversal
HX	Hexoskin smart shirt
LOA	Bland–Altman 95% limits of agreement
LRC	Locomotor-respiratory coupling
tB	Breath cycle time (from inspiration to next inspiration) (s)
tE	Exhale time (s)
tI	Inhale time (s)
TP	True positive