fartlek

fartlek training helps improve speed and endurance.

many runners incorporate fartlek workouts into their routine.

fartlek can be done on any terrain, making it versatile.

during a fartlek session, you vary your pace frequently.

fartlek is a swedish term meaning "speed play".

coaches often recommend fartlek for improving race performance.

fartlek workouts can be both fun and challenging.

you can adjust the duration of the fast and slow intervals in fartlek.

fartlek is ideal for those looking to break monotony in running.

many athletes use fartlek to enhance their overall fitness.