Run fast for a short distance, slow down for a bit to recover. Do it all over again. Interval training boils down to this simple formula – and offers runners a route to continuous improvement.
‘Interval training is going to increase your level of fitness faster than pretty much any other type of running,’ says running coach, Jeff Gaudette. Giving yourself a breather between segments of fast running allows you to handle more of it, delivering a greater stimulus to your heart, lungs and muscles.