MEASURING PHYSICAL FITNESS

MEASURING PHYSICAL FITNESS

I will start with how the professionals do it – in my next blog I will be telling you how to measure your own fitness level for yourself. Let me repeat that the best measure of physical fitness or cardio-respiratory fitness  or aerobic capacity is the maximal oxygen...
WHAT IS PHYSICAL FITNESS?

WHAT IS PHYSICAL FITNESS?

There are all sorts of aspects of physical fitness – muscle strength, balance, flexibility to mention a few. The aspect which interests me and is the subject of my blogs is aerobic fitness otherwise known as cardio-respiratory fitness (CRF).   It is the measure...
EXERCISE INTENSITY

EXERCISE INTENSITY

To derive health benefits the national guidelines recommend using exercise to burn about 1,000 Calories per week.  For weight loss and even greater health benefits an expenditure of 2,000 Calories per week is suggested. This is equivalent to about 1600 MET minutes per...
MEASURING EXERCISE DOSE

MEASURING EXERCISE DOSE

 Why measure exercise dose? You might wonder why it is helpful to regard exercise as a “dose” let alone measure it. Two reasons pop into my mind: Because of its widespread health benefits, exercise can be equated to medication. How big a dose is needed to help weight...
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...