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  • Title: Noninvasive estimation of the lactate threshold in a subject with dissociated ventilatory and pulmonary gas exchange indices: a case report.
    Author: Whipp BJ, Agostoni P.
    Journal: Chest; 2007 Dec; 132(6):1994-7. PubMed ID: 18079233.
    Abstract:
    This case report describes the responses to incremental work-rate exercise in a healthy subject (with normal pulmonary function), for whom the pulmonary gas exchange (V-slope) and ventilatory-related indexes (ie, ventilatory equivalents and end-tidal partial pressures for O2 and CO2) uncharacteristically do not occur at the same metabolic rate. Based on the results of additional constant-work-rate exercise tests, we propose that in the (occasional) event of such a dissociation between the V-slope and ventilatory-related responses normally associated with the lactate threshold (theta L), then the V-slope index should take priority as the theta L estimator.
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