Respiratory Rate is a Valid and Reliable Marker for the Anaerobic Threshold: Implications for Measuring Change in Fitness

Table 1. Descriptive data of the subjects (n = 15). Values are means (±SD).

	Power (Watt)		VO₂ (ml·kg^-1·min^-1)		Heart Rate (bpm)
	Test 1	Test 2	Test 1	Test 2	Test 1	Test 2
VE_VT	305 (37)	302 (26)	43.1 (6.8)	43.9 (6.1)	164 (13)	165 (9)
VE/VO_2VT	296 (30)	307 (20)	43.8 (6.7)	45.1 (8.2)	164 (11)	164 (9)
RR_VT	325 (30)	323 (33)	43.0 (11.1)	44.5 (9.2)	161 (18)	163 (15)
Maximal	389 (35)	392 (21)	65.7 (5.1)	67.4 (4.6)	184 (7)	183 (7)

VE = ventilation at the ventilatory threshold, VE/VO = ventilatory equivalent at the ventilatory threshold, RR = respiratory rate at the ventilatory threshold.