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Erin Calaine Inglis, Danilo Iannetta, Daniel A. Keir and Juan M. Murias

The highest rate of muscle metabolism that can be maintained by the oxidative system in steady-state conditions without continual blood lactate accumulation and progressive depletion of high-energy phosphates sets the upper limit of tolerable intensity. Identification of this “critical intensity

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Erin Calaine Inglis, Danilo Iannetta, Louis Passfield and Juan M. Murias

Identifying the critical intensity of exercise is a crucial aspect for predicting performance, prescribing exercise training, and evaluating the effectiveness of training interventions. 1 , 2 This critical intensity is thought to represent the upper boundary of sustainable performance (ie

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Martin J. MacInnis, Aaron C.Q. Thomas and Stuart M. Phillips

was truly the critical intensity of exercise above which oxygen uptake, muscle and blood [La − ], and other muscle metabolites become unstable. 14 Accordingly, the present data cannot be used to establish the relationship between 60-mintue MPO and the physiological CP. Determining this relationship