RUNNERS CAN EASILY fall into a basic routine for their workouts: Lace up, hit the pavement, then cruise at a comfortable pace for as many miles as planned. This might feel good, but it’s not always ...

Most solid training plans include a weekly speed workout, often in the form of intervals. But the length of those intervals usually depends on your race distance, training goals, and fitness level.

Interval running condenses the powerful effects of regular running into shorter, high-intensity bursts. Research shows it can improve cardiovascular health, regulate blood sugar, and reduce body fat ...

If you’ve ever followed a training plan or even read through one, you’ve probably seen the names of a few types of runs. You might have come across terms like “interval run” or “tempo workout” or ...

Here’s an example. Running an ultra marathon requires endurance, because the goal is to maintain a steady pace for several ...

If you are looking to shave seconds (or even minutes) off your run times, you might think the answer is simply to run more miles per week or push harder on your goal-paced intervals. However, as ...