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Here are some ways to understand and measure the intensity of aerobic activity: Relative intensity vs Absolute intensity. 

Relative Intensity

The level of effort required by a person to do an activity. When using relative intensity, people pay attention to how physical activity affects their heart rate and breathing.

The talk test is a simple way to measure relative intensity. In general, if you're doing moderate-intensity activity you can talk, but not sing, during the activity. If you're doing vigorous-intensity activity, you will not be able to say more than a few words without pausing for a breath.

Absolute Intensity

The amount of energy used by the body per minute of activity. The table below lists examples of activities classified as moderate-intensity or vigorous-intensity based upon the amount of energy used by the body while doing the activity.

...continue reading "Measuring Physical Activity Intensity – Centers for Disease Control and Prevention"

Aerobic activity or "cardio" gets you breathing harder and your heart beating faster. From pushing a lawn mower, to taking a dance class, to biking to the store – all types of activities count. As long as you're doing them at a moderate or vigorous intensity for at least 10 minutes at a time. Even something as simple as walking is a great way to get the aerobic activity you need, as long as it's at a moderately intense pace.

Intensity is how hard your body is working during aerobic activity.

How do you know if you're doing moderate or vigorous aerobic activity?

...continue reading "Aerobic activity – what counts? Centers for Disease Control and Prevention"