I've noticed that several of the guys in my club have paid to have their vo2 max tested and then reported it as a heart rate. This doesn't make any sense to me. I've always understood VO2 max to be a measure of the maximum amount of oxygen your body can process. it can be expressed as an absolute, the total quantity of O2 used or as relative score, i.e. the amount of O2 used in relation to your weight. Anything over 50 is good for a relative score.
Why are these guys getting it wrong? It sounds to me like they've confused VO2 max with lactate threshold but they disagree. Perhaps I've misunderstood something about VO2 max?