If you're in the mountains for work or leisure, make the most of your time at altitude and don't let it get the best of you.
If you're tight on training time, having a solid race and potentially even a great race, is well within your reach.
Get better, faster results by trying something new in your training.
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.
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.