Interval Training:
Speed Work for the Runner
Better Fitness Results for Everyone
Interval training is a great way to increase running speed. There are several ways you can incorporate this into your weekly trainings.
What is interval training?
To understand interval workouts, it's important to first understand two words: aerobic and anaerobic.
Aerobic means with oxygen. When performing an aerobic exercise, oxygen is supplied to the muscles we are working through our breathing. An aerobic exercise can be carried out for much longer periods of time than an anaerobic exercise because we are simply breathing in enough oxygen to fuel our workout.
Anaerobic exercise requires more oxygen than what we can provide just by breathing in and out. This forces the larger muscles to take over. Anaerobic exercise cannot be carried out for very long periods.
This concept will become more clear later on.
For now, the basic idea is this, varying your cardio workout between higher intensity periods called "repetitions" and lower intensity recovery periods called "intervals" or "rest periods."
Benefits of the Interval Workout
You will see more results faster than regular cardio (aerobic) workouts. That is because interval training burns fat which stays off, it burns more calories and it helps workout the larger muscles that you wouldn't normally workout with an aerobic workout.
To me the most important benefit is it's a lot more fun than doing the same thing for the entire workout. ;-)
Benefits of Interval/Speed Work for Runners
Interval workouts are especially beneficial for the runner because not only does it give all the benefits listed above, but it also helps increase running speed and endurance.
However, even if you don't care to increase your running speed, you will still benefit from speed work or interval training by being a more fit runner and therefore being able to run at your current speed more comfortably.
Basic Interval Workout
A basic 30 minute interval workout looks like this:
1. 10 minutes warmup
2. 1 minute medium to high intensity
3. 1 minute low intensity - recovery period
4. Repeat steps 2 and 3 four times
5. 10 minutes cool down
As you become more fit, you can increase the time and intensity of your reps (medium to high intensity period). You can also increase the time of your intervals (recovery periods) as need be.
A basic 4-6 mile interval workout on the track:
1. 2x's around the track warm up
2. 1x around the track run medium to high intensity
3. 1x around the track run low intensity - recovery period
4. Repeat steps 2 and 3 three-seven times
5. 2x's around the track cool down
A variation I like to try on the track:
1. 2x's around the track warm up
2. 1x around the track run medium to high intensity
3. 1x around the track run low intensity - recovery period
4. Repeat steps 2 and 3 once
5. Run around the track, sprinting the long part of the track, jogging the ends
6. Repeat step 5 one-three times
7. Repeat steps 2-3 two-four times
8. 2x's around the track cool down
Be sure to stretch at the end of any workout! ;-)
Run Walk: Interval Training for the Runner
A variation for the runner would be a run walk. You can start with a 1-3 minute run followed by a 1 minute recovery period, and repeat this throughout your run.
I have tried this on and off throughout my running and it has helped improve my running speed and endurance a great deal on long runs because I tire out less quickly so I can run longer.
Speed Work for the Runner
There are several variations of speedwork for the runner. Some variations are timed interval training, the more spontaneous fartlek running and tempo running.
All of these are meant to make you a stronger, faster runner with better stamina.
Here are some speed training workouts.
Interval Training Resources
The The Interval Training Workout: Build Muscle and Burn Fat with Anaerobic Exercise will help you understand interval training. You can find a summary of what this book offers here.