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The aim of this study was to establish the relationship between selected physiological variables of rowers and rowing performance as determined by a 2000 m time-trial on a Concept II Model B rowing ergometer. The participants were 13 male club standard oarsmen. Their mean (±s) age, body mass and height were 19.9±0.6 years, 73.1±6.6 kg and 180.5±4.6 cm respectively. The participants were tested on the rowing ergometer to determine their maximal oxygen uptake ([Vdot]O_2max), rowing economy, predicted velocity at [Vdot]O_2max, velocity and [Vdot]O₂ at the lactate threshold, and their velocity and [Vdot]O₂ at a blood lactate concentration of 4 mmol·l^-1 . Percent body fat was estimated using the skinfold method. The velocity for the 2000 m performance test and the predicted velocities at the lactate threshold, at a blood lactate concentration of 4 mmol·l^-1 and at [Vdot]O_2max were 4.7±0.2, 3.9±0.2, 4.2±0.2 and …