Study shows muscular endurance prevents fatigue-related loss of running economy.
This brainchild of French exercise scientist Veronique Billat may be the best workout you've never done.
Top athletes and expert coaches explain how to progress your fitness without ever stepping foot outside.
Give this workout a shot when transitioning back into track training.
Speed is rarely the limiting factor in how fast you can race, even for a distance as "short" as the 5K.
Can reducing your mileage and relying on short and fast intervals put you on a path to better running?
One study seems to favor low intensity — but read the fine print.
A study suggests your body knows best how hard to run each interval and how long to rest in between.
This tough track session has been a secret to many a fast 5K runner's success.
Don't go faster than you should just because you're feeling good!