RELIABILITY, REPRODUCIBILITY AND VALIDITY OF THE INDIVIDUAL ANAEROBIC THRESHOLD

Authors
  1. McLellan, T.M.
  2. Jacobs, I.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The individual anaerobic threshold (IAT) has been defined as the highest metabolic rate at which blood lactate (La) concentrations are maintained at a steady state during prolonged exercise. The validity of this definition, however, has not been substantiated. Eleven men (maximum oxygen uptake (VO2max), mean (SD), 57.8 (6.9) ml-kg1(-).mm1(-) did two maximal incremental cycle exercise tests (30 W and 4 min per step). Blood was ampled repeatedly during exercise and for 9 min during the subsequent recovery period with light activity. The subjects then exercised at the power output equivalent of IAT for 45 min, until they could no longer continue or until rectal temperature reached 39C. Subjects performed two additional exercise tests. The intensity of these tests depended upon the LA and acid-base responses during the last 15 min of at least 30 min of exercise at IAT.
Report Number
DCIEM-92-34 — Reprint
Date of publication
05 Apr 1993
Number of Pages
7
Reprinted from
Eur J Appl Physiol, vol 67, 1993, p 125-131
DSTKIM No
93-04896
CANDIS No
135520
Format(s):
Hardcopy;Originator's fiche received by DSIS

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