Energy continuum

• energy continuum - the relative contribution of each energy system to overall energy production depending on intensity and duration of the activity
• intermittent exercise - activity where the intensity alternates, either during interval training between work and relief intervals or during a game with breaks of play and changes in intensity
• thresholds - the point at which an athletes predominant energy production moves from one energy system to another

  e.g lactic threshold and ATP-PC lactic acid threshold