A COMPARATIVE EVALUATION OF THE INDIVIDUAL ANAEROBIC THRESHOLD AND THE CRITICAL POWER

Authors
  1. McLellan, T.M.
  2. Cheung, K.S.Y.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The individual anaerobic threshold (IAT) is defined as the highest metabolic rate where blood lactate (La) concentrations are maintained at a steady-state during prolonged exercise. The asymptote of the hyperbolic relationship between power output and time to fatigue has been defined as the critical power (CP), which, in theory, represents the highest metabolic rate where a steady-state response can be achieved during prolonged exercise. Since IAT and CP may define the same power output, the purpose of this study was to compare the gas exchange, blood La, and acid-base responses during exercise at the metabolic rates defined as IAT and CP. Fourteen males performed a maximal incremental cycle exercise test that was followed by a light active recovery period to determine IAT.
Report Number
DCIEM-91-16 — Reprint
Date of publication
15 Nov 1991
Number of Pages
8
Reprinted from
Medicine and Science in Sports and Exercise, vol 24, no 5, 1991, p 543-550
DSTKIM No
92-02845
CANDIS No
125334
Format(s):
Hardcopy;Originator's fiche received by DSIS

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