. 2019 May 16;127(1):81–88. doi: 10.1152/japplphysiol.01053.2018

Table 2.

Effect of dietary $N O_{3}^{-}$ at rest and during moderate- and heavy-intensity alternate-leg knee-extension exercise

	Rest		Moderate-Intensity Exercise		Heavy-Intensity Exercise
	Placebo	$N O_{3}^{-}$	Placebo	$N O_{3}^{-}$	Placebo	$N O_{3}^{-}$
Heart rate, beats/min	63 ± 10	61 ± 9	88 ± 11^*	85 ± 7^*	108 ± 12^*^#	105 ± 10^*^#
Stroke volume, ml/beat	103 ± 10	97 ± 16	127 ± 21^*	125 ± 26^*	125 ± 22^*	131 ± 29^*
Cardiac output, l/min	6.5 ± 1.0	5.9 ± 0.9	11.1 ± 1.5^*	10.5 ± 2.1^*	13.3 ± 2.0^*^#	14.1 ± 2.6^*^#
Mean arterial pressure, mmHg	84 ± 8	82 ± 5	97 ± 9^*	98 ± 7^*	116 ± 13^*^#	110 ± 5^*^#
Systolic blood pressure, mmHg	121 ± 12	117 ± 7	152 ± 14	151 ± 13	180 ± 18^*^#	169 ± 15^*^#
Diastolic blood pressure, mmHg	66 ± 6	64 ± 6	69 ± 9^*	73 ± 6^*	84 ± 11^*^#	81 ± 4^*^#
Leg blood flow, l/min	0.346 ± 0.086	0.324 ± 0.054	1.676 ± 0.365^*	1.722 ± 0.310^*	2.158 ± 0.366^*^#	2.266 ± 0.377^*^#
Leg vascular conductance, l·min⁻¹·mmHg⁻¹	0.004 ± 0.001	0.004 ± 0.001	0.017 ± 0.004^*	0.018 ± 0.003^*	0.019 ± 0.004^*^#	0.021 ± 0.003^*^#
Oxygen consumption, l/min	0.257 ± 0.022	0.270 ± 0.031	0.802 ± 0.130^*	0.788 ± 0.086^*	1.161 ± 0.146^*^#	1.169 ± 0.138^*^#

Values are means ± SD. A significant (P < 0.05) main effect of exercise intensity was observed.

Significant post hoc test difference from rest.

Significant post hoc test difference from moderate-intensity exercise.