a several e available, a simple and common procedure is to through the lactate concentrations at the first 50 Section Three Physiology of Performance
rates The last point on the line conside reshold (ig 204). The obvious advantage inspect the disadvantage this technique is its stmplicity point where there a sudden Increase in vestigaron agree that this procedure tion 0Figi 20.5) The point at which ventilation that not a old and is pldly is considered the ventilatory threata an yields valid and tesults researchers have proposed iat com The error in predicting the lactate threshold from plex computer programs be used to more lactate threshold, o arbitrary lac the 12a or threshold mated to range from Go) Therefore, this technique tate value (eg, 4 mM) be used as an indication of the zed of precision Nonetheless, it shown in predicting endurance (29, 7s) Prediction of the Lactate Threshold by Ventila- tory Alterations techniq Measurement of critical Power lactate threshold that does not require blood with drawal has obvious appea vestigators and Another laboratory measurement that can be used ects. This need for a noninvasive predict performance endurance events is criti method to determine the lactate threshold has led to power. The concept of critical power is based the widespread use of ventilatory and gas exchange upon the cancept that athletes can maintain a spe measures to estimate the lactate threshold. Recall cific submaximal power output without fatigue es from Chap, 10 that the rationale for the use of the Figure 206 illustrates the critical power concept ventilatory threshold a -marker" of the lactate for running performance in this illustration, runnin threshold is linked to the belief that the increase in speed is plotted on the y axis, and the time that the blood lactate concentration at he lactate