Interval Training

Interval training is a system based on alternating short, higher intensity speed with slower, lower intensity recovery phases.  Interval training works both the aerobic and anaerobic systems and builds lactic acid in the muscles which results in that burning feeling. In the recovery phase both the heart and the lungs work to break down the lactic acid, and it’s during this phase that the aerobic system uses oxygen to convert stored carbohydrates into energy.

Adaptation is one of the principles of interval training where the body is asked to adjust to increased or decreased physical demands. This ability translates directly into performance.  If you are training for something specific – which could be anything from a 10k run, a triathlon or an arduous hike – this type of training would be great for you.  It is not easy and you may be sore after a workout until your body adapts. Your trainer may then increase the intensity and/or duration and your body will again work hard to adapt to the next level.

Interval training leads to an increase in cardiovascular efficiency – that is the ability to deliver oxygen to the working muscles.  It also builds your tolerance to lactic acid which results in improved performance, greater speed and more endurance.


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