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

Sports Medicine - Open

Table 1 Trial participant and supplementation characteristics

Trial	Total sample size	Sex	Age (yrs)	Weight (kg)	Baseline VO_2peak (ml/kg/min)	NO₃⁻ dose (mmol/day)	NO₃⁻ dose (mmol/kg/day)*	Acute dose prior	Health status	Route of administration
De Smet et al. [28]	17	M	24.5	79.0	52.8	6.5	0.082	No	Healthy	BRJ
Finkel et al. [29]	16	M	26.7	77.9	56.7	–	0.140	No	Healthy	Other
Muggeridge et al. [30]	19	M	28.5	82.3	41.0	8.0	0.097	No	Healthy	Other
Puype et al. [31]	22	M	21.6	72.2	60.5	11.3	0.070	Yes	Healthy	BRJ
Shaltout et al. [32a]	19	M/F	69.3	87.8	11.9	6.1	0.069	Yes	Clinical	BRJ
Shaltout et al. [32b]	27	M/F	65.3	97.8	18.4	8.0	0.082	Yes	Clinical	BRJ
Sousa et al. [33]	20	M	36.8	70.6	56.2	8.4	0.120	Yes	Healthy	BRJ
Thompson et al. [34]	24	M/F	25.0	72.5	45.1	12.8	0.180	Yes	Healthy	BRJ
Thompson et al. [35a]	24	M/F	23.5	75.5	43.3	12.8	0.170	Yes	Healthy	BRJ
Thompson et al. [35b]	24	M/F	23.5	75.5	43.3	12.8	0.170	Yes	Healthy	Other
Woessner et al. [36]	24	M/F	69.7	80.5	14.7	4.2	0.050	No	Clinical	BRJ

Data are presented as means
M males, F females, Yrs years, Kg kilograms; [32a] Heart failure trial. [32b] Hypertension trial. [35a] Beetroot juice trial. [35b] Potassium nitrate trial
*Manually calculated based on mmol and mean kg data