Therefore, your PR interval may or may not be short and I wouldn't worry until you receive a full report. The PR interval is short in children and lengthens as we get older. A normal value in adults is 120 to 200 milliseconds. It is however shorter than 120ms in approximately 2 to 4% of the adult population.
It is SaO2 that measures oxygen saturation of hemoglobin, and it should be clear that it depends on the partial pressure of arterial oxygen. If PaO2 drops, there's less dissolved oxygen, and therefore less saturation of hemoglobin with oxygen.
The VO2 max is the single most used measure of cardiovascular fitness and maximal power. You have a VO2 max 24/7 as you are always taking in oxygen and utilizing it. At rest, the common VO2 max is 3.5 l/min of oxygen consumption. VO2 max in men is approximately 40-60% higher in males than females.If we break down the formula we can see why it gets its strange name.he VO2 max is the single most used measure of cardiovascular fitness and maximal power. You have a VO2 max 24/7 as you are always taking in oxygen and utilizing it. At rest, the common VO2 max is 3.5 l/min of oxygen consumption. VO2 max in men is approximately 40-60% higher in males than females.