Hill, D. W., Heidbrink, A. M., Low, T. D., & Smith, J. C. (1977). Comparison of indices of anaerobic capacity. Medicine and Science in Sports and Exercise, 29(5), Supplement abstract 59.

Men (N = 7) performed an incremental cycle ergometer test to determine the power at which VO2max was elicited. They then performed five all-out constant-power tests at 100%, 110%, 135%, 95%, and 100% of maximum power level. Each method produced different results and varying estimates of anaerobic capacity.

Implication. Methods of determining oxygen deficit are influenced differently by the duration of the all-out task used in the testing. Results of tests of different duration vary significantly. Assumptions underlying anaerobic testing must be re-evaluated.

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