Running News Daily

Smash your spring 5K with this 15/30 interval session

With the spring racing season around the corner, there are less than six weeks to squeeze in speed workouts before race day. If you’re training for a 5K, there’s no better way to prepare yourself to run fast than adding short fartlek interval sessions to your training regimen.

Fartlek (interval) training involves frequent changes in speed and effort, where the total distance and time are structured or random to get you comfortable with a range of paces.

Short interval sessions are great for runners training for a 5K, or generally looking to improve their speed and racing tactics. The constant change of pace simulates the ups and downs of a 5K or mid-distance track race, helping you get comfortable with changing speeds on a dime.

The workout

15 to 20 reps of 15 seconds fast, 30 seconds float jog (continuous)

Each 15-second rep should be done at a comfortably-fast pace (at 5K pace or faster)—and the 30-second float should be done at a half marathon/marathon pace, a little faster than you would do easy runs.

The purpose of this workout is to train your body to become more familiar with faster paces on shorter, faster recovery. If training for your first 5K, aim for 15 reps and make sure you start slow. If you need to walk between reps, it’s a sign that you are pushing too hard during the 15-fast or 30-float.

An experienced 5K runner should aim for between 20 and 25 reps to simulate the pace changes of the race. Another great thing about this workout is that it can be done on any surface (road, track or trail), or the treadmill.

Adding one or two fartlek interval workouts to your weekly training regimen will quickly improve your speed and endurance, helping prepare your body and mind for faster efforts on race day.