HIIT Cardio Versus Fartlek Training

HIIT cardio is the new craze sweeping across gymnasiums in Europe and North America - the reason for this... it's fast, efficient and it works!
High intensity interval training is something that athletes and runners in particular have been well aware of for a long time now. Fartlek training, translated from Swedish is 'speed play' and this has been a popular method of fitness training for runners for... Read More