Effect of training at the 4mmol/L or 6mmol/L lactate velocity on the 4mmol/L lactate anaerobic threshold velocity in female high school swimmers

Twelve female high school swimmers trained six weeks using a 1,000 yard training intervention at the 4mmol/L lactate swim velocity or the 6mmol/L lactate swim velocity to determine the effect on the 4mmol/L lactate anaerobic threshold swim velocity (4ATV). Group A (n = 6) trained at the 4mmol/L velocity and Group B (n = 6) trained at the 6mmol/L velocity. Pre and post intervention lactate profiles indicated mean +/-SD change in the 4ATV was 0.0562 +/- 0.0946 y/s for Group A and 0.1101 +/- 0.1179 y/s for Group B, eliciting no significant change between groups (p ≥ 0.05). Therefore, results of this study indicate there was no significant change in the 4ATV in female high school swimmers who trained 1,000 yards at the 4mmol/L lactate velocity compared to those who trained at the 6mmol/L lactate velocity.