Limited Effects of Inorganic Nitrate Supplementation on Exercise Training Responses: A Systematic Review and Meta-analysis

Sports Medicine - Open

Table 5 Meta-regression analysis for VO_2peak and TTE

Moderator Variable	VO_2peak Comparison	VO_2peak p-value	TTE Comparison	TTE p-value
Baseline VO_2peak	ß = 0.01 CI: − 0.01, 0.02	0.48	ß = 0.01 CI: − 0.01, 0.03	0.25
Age	ß = − 0.003 CI: − 0.02, 0.01	0.70	ß = − 0.01 CI: − 0.02, 0.011	0.55
Weight	ß = − 0.02 CI: − 0.05, 0.01	0.27	ß = − 0.02 CI: − 0.05, 0.02	0.33
NO₃⁻ mmol/day	ß = 0.02 CI: − 0.08, 0.11	0.74	ß = 0.01 CI: − 0.11, 0.12	0.91
NO₃⁻ mmol/kg/day*	ß = − 2.24 CI: − 8.02, 3.53	0.45	ß = − 0.14 CI: − 6.68, 6.41	0.97
Training duration	ß = 0.04 CI: − 0.06, 0.15	0.42	ß = 0.01 CI: − 0.29, 0.31	0.94