A simplified strategy for the estimation of the exercise ventilatory thresholds.

@article{Neder2006ASS,
  title={A simplified strategy for the estimation of the exercise ventilatory thresholds.},
  author={Jos{\'e} Alberto Neder and Ricardo Stein},
  journal={Medicine and science in sports and exercise},
  year={2006},
  volume={38 5},
  pages={
          1007-13
        }
}
  • J. NederR. Stein
  • Published 1 May 2006
  • Medicine
  • Medicine and science in sports and exercise
PURPOSE To analyze the limits of agreement between exercise ventilatory threshold values (VT1 and VT2) estimated from a combination of pulmonary gas exchange and ventilatory variables (cardiopulmonary exercise testing) and those derived from an alternative approach based on the ventilatory response only (V(E), ventilometry). METHODS Forty-two nontrained subjects (24 males, aged 18-48, peak VO(2) = 33.1 +/- 8.6 mL.min(-1).kg(-1)) performed a maximum incremental cardiopulmonary exercise testing… 
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Highly Influential Citations
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Methods Citations
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Results Citations
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References

SHOWING 1-10 OF 27 REFERENCES

Ventilatory, lactate-derived and catecholamine thresholds during incremental treadmill running: relationship and reproducibility.

In the present exercise protocol, there are systematic differences between the lactate-derived and ventilatory thresholds, in spite of a close relationship, and these must be taken into account in recommendations derived for training.

Maximal lactate steady state, respiratory compensation threshold and critical power

Critical power and the second ventilatory threshold (VT2) are presumed to indicate the power corresponding to maximal lactate steady state (MLSS) and CP calculated from a given range of exhaustion times does not correspond to MLSS.

Assessment of exercise intensity formulas by use of ventilatory threshold.

Predicted and measured maximal HR at 77 percent were not above the VT among the low- and average-fitness individuals and are appropriate for training intensity, but the Karvonen formula appears to overestimate heart rate intensity among those of low and average fitness and may be excessive for these groups.

Monitoring high-intensity endurance exercise with heart rate and thresholds.

Results show that physiological parameters near the ventilatory threshold are not interchangeable and that some cannot be used to monitor high-intensity long term exercise and cannot predict the highest work intensity that can be sustained during prolonged exercise without fatigue.

A new method for detecting anaerobic threshold by gas exchange.

From incremental exercise tests on 10 subjects, the point of excess CO2 output (AT) predicted closely the lactate and HCO-3 thresholds and could be more reliably determined by the V-slope method.

Ventilatory and gas exchange responses during heavy constant work-rate exercise.

There is an excessive metabolic response to heavy exercise over and above that predicted by extrapolation from light-moderate exercise and this excess VO(2) approximates on average to the slow phase of a three-compartment exponential model.

A conceptual framework for performance diagnosis and training prescription from submaximal gas exchange parameters--theory and application.

An applicable framework for the evaluation of endurance capacity as well as for the derivation of exercise prescription by the use of two gas exchange thresholds: aerobic (AerTGE) and anaerobic (AnTGE).

Carbonic anhydrase inhibition delays plasma lactate appearance with no effect on ventilatory threshold.

The similarity in VET in Con and Acz suggests that La (-) production is similar between conditions but La(-) appearance in plasma is reduced and/or La(+) uptake by other tissues is enhanced after the Acz treatment.

Is lactic acidosis a cause of exercise induced hyperventilation at the respiratory compensation point?

It was directly demonstrated that exercise induced lactic acidosis is causally involved in the hyperventilation which starts at RCP, however, it does not represent the only additional stimulus of ventilation during intense exercise.

VO(2) reserve and the minimal intensity for improving cardiorespiratory fitness.

Although evidence for a threshold intensity was not strong, this analysis of training studies supports the use of 45% VO(2R) as a minimal effective training intensity for higher fit subjects and 30%VO( 2R) for lower fit subjects.