Fartlek training

Fartlek Training
Fartlek, developed in the 1930's, comes from the Swedish for 'Speed Play', combines continuous and interval training.

Fartlek training (speed play)
Training in which the pace is varied from a fast sprint to slow jogging.
Fat-free mass
The combined mass of the body of everything that is not fat (e.g. muscle, bone, skin and organs) .

Fartlek Training
No discussion of Interval Training would be complete with a reference to Fartlek Training. Translated from Swedish, "Fartlek" literally means "speed play." What is it?

65. Mix it up
"Fartlek training can help you build strength and endurance, learn race pace, and practice race tactics all in a single workout." --Bill Dellinger, former University of Oregon coach and 1964 Olympic 5000 bronze medal winner ...

How to Design a Fartlek Training Session for Your Sport
Fartlek may sound strange but it's a highly effective form of training. And with so many variations you need to make sure it's specific to your event...

For example, during interval training or fartlek training, you would would sprint for a certain distance then walk to recover. This active recovery helps rid the muscles of lactic acid, which causes soreness and fatigue.

Long Slow Distance Training
Pace/Tempo Training
Interval Training
Circuit Training
Fartlek Training ...

See also: Fartlek, Exercise, Endurance, Work, Muscle