To improve performance, athletes need to vary their workouts. For runners, this means alternating endurance runs with shorter but more difficult courses. ""Run

A breakthrough program for triathletes -- beginner, intermediate, and advanced -- showing how to balance training intensity to maximize performance -- from a fi

Triathletes who hope to improve their swimming too often mix and match workouts or workout segments with no particular goal. The workouts in this set provide a

Finally, runners at all levels can improve their race times while training less, with the revolutionary Furman Institute of Running and Scientific Training (FIR

With uncompromising quality and a no-nonsense approach to training, these 50 one-hour workouts fit even the most hectic schedule to keep season goals on track.