What is fartlek traning?

Fartlek training is a form of interval training that blends continuous running with varied intensity levels. The term "fartlek" comes from Swedish, meaning "speed play," and involves alternating between fast-paced bursts and slower recovery periods during a workout. This method helps improve both speed and endurance and can be tailored to individual fitness levels and goals. It's commonly used by runners but can be adapted for various sports and fitness activities.