Measure Your Fitness Levels With The Vo2 Max Measure
When people hear the word “fitness” it can refer to many things: muscle fitness, flexibility, but the word is usually reserved for referring to aerobic or cardio fitness. This is a measurement of how effective your body is of delivering oxygen to the cells.
When you get more active, your body undergoes physiological changes that in general will increase your aerobic fitness levels. The following changes happen:
1. Muscle fibres get bigger.
2. Blood vessels to muscle fibres increase in number.
3. Energy release from the cells’ mitochondria becomes more efficient.
Other changes also occur. The heart grows in size, especially the part which does the most pumping of blood. It also becomes more muscular.
So what is the best way of ascertaining your aerobic fitness. The usual way is to measure your VO2 max. The VO2 max measure is the maximum capacity of your body to transport oxygen during an incremental exercise. The name is derived from V – volume per unit time and O2 – oxygen.
Usually, the subject runs on a treadmill which increases in intensity and wears a face mask to measure the oxygen content of the air they breathe out.
There are other more simple ways of calculating your VO2 max without resorting to using complicated apparatus in a science laboratory.
A very simple way to get a quick estimate of your VO2 max is a walking fitness test. Simply time how long it takes you to walk 1 mile as briskly as you can, and then measure your heart rate. These figures can be plugged into the appropriate equation, you can find one on the internet, along with your age, sex, and weight, and you will get an approximate figure for your VO2 max.
For some simple exercises to keep fit, go to Keep Fit Exercises.
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