Workout Of The Week: 2-Speed Treadmill Threshold Run

Alternating speeds every minute during a sustained treadmill run can break up the boredom. Photo: endurancesportstrainingblog.com

Indoor threshold runs don’t have to be boring.

Source: http://running.competitor.com/2012/12/training/workout-of-the-week-2-speed-treadmill-threshold-run_31887

rebook zigtech zigtech custom reebock zigtech