Dmax method. Refer to text for explanation. uptake/consumption. VO2 is a linear function of work rate. Used (redrawn) with permission from Cheng B, Kuipers H, Snyder AC, Keizer HA, Jeukendrup A, Hesselink M. A new approach for the determination of ventilatory and lactate thresholds. Int J Sports Med. 1992 Oct;13(7):518-22; Georg Thieme Verlag KG.