EXERCISE AND OXYGEN

EXERCISE AND OXYGEN

The energy required by muscles to contract is produced by complex biochemical reactions. A critical contributor to the process is oxygen (O2).   Oxygen comprises about 20% of the air we breathe. It is absorbed from the lungs onto the haemoglobin molecules in the...
PHYSICAL FITNESS AND OXYGEN UPTAKE

PHYSICAL FITNESS AND OXYGEN UPTAKE

VO2max In my last Blog I described the concept of oxygen uptake – VO2 – and of maximum oxygen uptake – VO2max.  The concept of VO2max is very important. It is the most precise measure we have of physical fitness. It describes the maximum work rate of which a...