Fig. 3
Nitrate supplementation forest plot. Abbreviations – %Δ, work rate that would achieve x% of difference between V̇O2 at gas exchange threshold and V̇O2peak; CI, confidence interval; GXT, graded exercise test; IGXT, intermittent graded exercise test; ITT, intermittent time-trial; ITTE, intermittent time to exhaustion; k, number of trials; km, kilometre; n, sample size; NO3-, nitrate; PL, performance level; Qb, between-group Q-statistic; rpm, revolutions per minute; s, second; SMD, standardised mean difference (Hedge’s g); supp., supplementation; TT, time-trial; TTE, time to exhaustion.