metabolic and related thresholds

(redirected from anaerobic threshold AT)

metabolic and related thresholds

intensities of exercise (expressed as power output or as percentages of aerobic capacity, O2 max) at which specific metabolic and related changes are considered to take place. A plethora of thresholds has been proposed historically. These included many giving the same label to different criteria, or different labels to the same criterion; a number also embodied assumptions about bodily processes, at best unproven and sometimes now known to be false. The table lists six which appear unambiguous, the first five exactly as first described and the sixth slightly modified; however the two that are not related to observable phenomena (anaerobic and aerobic thresholds) are not recommended for further use. The [Lac]b (blood lactate concentration) values cited are representative approximations for a healthy but untrained young adult; they are used in some laboratories as working indices, but should not be taken as definitions of the term concerned. Other usages in the literature include: (1) OBLA as equivalent to LT or AT - confusions possible only if the reference to continuous rise is omitted from the OBLA definition; (2) the 4 mmol.L- criterion being designated as any one of 'anaerobic', 'aerobic' or 'aerobic/anaerobic' thresholds. See table overleaf .
References in periodicals archive ?
Although the G21km lactate concentration was above anaerobic threshold at the end of the race, it was less compared to the G5km (5.
1] of blood lactate accumulation, and anaerobic threshold at the velocity correspondent to 3.
found that ME/CFS patients achieved significantly lower values for the oxygen uptake and workload at peak exercise and at the anaerobic threshold at a second exercise test 24 h later and that the results of the second exercise test could classify patients and sedentary controls with great accuracy (95.
5] in which people with CFS achieved significantly lower values for oxygen uptake and workload at peak exercise and at the anaerobic threshold at a second exercise test.
00 value with anaerobic threshold at the abrupt lactate increase and the onset blood lactate accumulation; and (b) determining the correlation and agreement of the iRER = 1.