Table 2.

Peak Effort Gas Exchange Data

Marginal Mean (95% CI)	KNO3 (n=9)
	Visit 1	Visit 2	Visit 3	P-value
Ventilatory Threshold
Ventilatory Threshold (L/min)	0.75 (0.69–0.81)	0.68 (0.61–0.74)	0.74 (0.68–0.80)	0.23
iVentilatory Threshold (mL/kg/min)	8.18 (7.65–8.72)	7.51 (6.94–8.08)	8.07 (7.53–8.60)	0.24
Peak Exercise
Peak VO2 (L/min)	1.16 (1.13–1.19)	1.20 (1.17–1.24)	1.20 (1.17–1.23)	0.13
Peak iVO2 (mL/kg/min)	12.50 (12.18–12.83)	12.83 (12.49–13.18)	12.87 (12.55–13.20)	0.26
Exercise Duration (min)	9.87 (9.31–10.43)	10.73 (10.13–11.33)	11.61† (11.05–12.17)	0.002
Total Work Performed (kJ)	23.22 (18.82–27.61)	26.92 (22.22–31.63)	33.02† (28.63–37.41)	0.02
Total Oxygen Consumed (L)	8.58 (7.72–9.44)	10.00* (9.08–10.92)	10.54† (9.67–11.40)	0.019
Total Exercise Economy (kJ/L O2 Consumed)	2.52 (2.31–2.72)	2.61 (2.39–2.83)	2.85 (2.65–3.06)	0.10
RER	1.08 (1.06–1.10)	1.09 (1.06–1.11)	1.09 (1.07–1.11)	0.83
VE/VCO2 Slope	34.37 (32.75–35.98)	36.10 (34.38–37.83)	33.81 (32.20–35.42)	0.18

RER = respiratory exchange ratio; kJ = kilojoules

^*p<0.05 V₁ vs. V₂;

^†p<0.05 V₁ vs. V₃;

^‡p<0.05 V₂ vs. V₃