Whether you're building your own training plan or following a pre-set training plan, it's important to understand that workouts don't just happen arbitrarily. Instead, they should progress in volume, ...

Most training plans suggest mixing runs of various lengths and speeds, with a shift in focus—from endurance to speed, typically—as you get closer to a goal race. This approach, “periodization,” is the ...

In my toolbox article last month, I introduced the concept of using your Heart Rate Variability (HRV) – the difference in timing between subsequent heartbeats – to provide insight into how you are ...