Here a short add on to om ongoing discussion. A very common information we are getting :
" VO2max is the maximum amount of oxygen that can be used for energy in an endurance activity. The higher an athlete's VO2max, the greater his or her endurance capability. "
Here fro a much more accepted source than we are.
University of Maastricht :
combination of factors limit VO
2max; these restrictions include cardiopulmonary limitations,
oxygen carrying capacity limitations and limitations in the oxygen consumption capacity by
the muscle cell mitochondria. Despite its general use, VO
2max has not been shown to be
reliable in predicting endurance performance, as witnessed by the lack of difference between
professional and amateur cyclists. Rather, other parameters seem to be highly beneficial in
assessing and predicting cycling endurance performance. The most important parameters are
power output (W), breathing pattern (minute ventilation, V
E; breathing frequency; tidal
volume, Vt), ventilatory equivalent (eqVO"
The second most discussed idea is :
" The lactate (anaerobic) threshold is reached when lactic acid accumulates in the blood to such an amount as to cause fatigue, muscle discomfort, and a burning sensation. It is generally considered to be the most difficult of the three factors to improve; in fact, the exact methods to effectively increase lactate threshold are often disagreed upon. "
Perhaps we disagree as there may b no such thing like a lactate threshold.( anaerobic threshold or what ever threshold.
To believe or not to believe ... in the anaerobic threshold
There are those who have no doubt in the existence of the anaerobic threshold; that somewhere between the intensity of a leisurely jog and the most frantic sprint there is a point beyond which you go from aerobic metabolism to a combination of aerobic and anaerobic metabolisms. This convenient and attractive theory has many devotees at present. Popular magazines frequently cite it, implying that its existence is something that is generally agreed upon. Indeed, during a high intensity run for several minutes, you sometimes feel that it would require great courage to increase your speed by even the smallest amount.
However, current scientific knowledge refutes the anaerobic threshold theory. Presenting the details here would be tedious, but we highlight the following points:
· There is no power threshold below which a muscle does not produce lactate. A muscle constantly produces lactate, even from the lowest work level, and a muscle produces lactate even when the supply of oxygen is adequate.
· During a ramp test (such as the ones carried out in the laboratory in which the runner must run at a regularly increasing intensity until exhaustion], the blood lactate concentration never appears as a threshold, as some people argue. The curve obtained shows no deflection (Figure 3). To see one, a very fertile imagination is required. It is true that many sports scientists (whose fame is somewhat inferior to the revenues they obtain from the tests they conduct) unscrupulously possess such an imagination but, in reality, the shape of this curve is most likely the result of a delay in the appearance of the lactate in the blood (PERONNET and MORTON, 1994)." By
It is not lactic acid's fault
By Guy Thibault, François Pérnott
That leaves us for teh moment with teh thought, that we may have some new ioptions . IPAHD or teh use of what we can test to a new concept and new ideas.