Try this workout anytime, anywhere

Even the most organized and well-prepared runner occasionally finds themselves scrambling to fit training into an overly busy schedule, or trying to slot it around unexpected life events. It’s helpful to have a few simple workouts that can flex with whatever time and terrain you have available. This session can fit seamlessly into your regimen, with customizable intervals to match your aim and ability.

No matter what your end goals are, you’re probably doing some combination of easy runs and speedwork, hill intervals and longer runs; most training plans also include tempo runs. Tempo sessions involve intervals that are run at a “comfortably hard” pace—this boosts your anaerobic threshold, so your body adapts to performing comfortably at a higher intensity.

The workout

Warm up with 10-15 minutes of easy running.

Run 5-10 x 3 minutes at 10K effort with 1 minute of easy recovery, aiming to stay consistent throughout all intervals.

Cool down with 10-15 minutes of easy running.

How to modify

If you’re training for a longer race like a marathon or ultra, extend your intervals and ease up on your pace. You should still be running at an effort that takes focus to maintain, but opt for a half-marathon pace (or slightly slower).

Short on time but still want maximum impact? Tighten up your intervals, ramp up your speed or cut your recovery time in half: try running 10 x 2 minutes with 30 seconds between intervals, at 5K pace. Feel free to shorten the length of your warmup and cooldown times, but make sure your legs feel fully prepared to work hard. Alternatively, if you have a few extra minutes when you have completed your cooldown and really want to finish your legs off, tack on a quick series of strength exercises, like these. 

This session works on the road, trails or treadmill, and if you’re training for a hilly race, simply take those intervals uphill. Make sure to follow a harder training session with an easy recovery or rest day.