Fig. 3From: Interobserver variability of ventilatory anaerobic threshold in asymptomatic volunteersBland-Altman plots of ventilatory anaerobic threshold (expressed as VO2@AT) determined by two physician readers in study phase 1 (after consensus discussion) and phase 2 combined (n = 1,056 data sets). a Percentage difference. b Difference in mL/min. SD = standard deviation; VO2@AT = oxygen uptake at the anaerobic thresholdBack to article page