Here is an interval workout that I did last week:
1. 3 minutes fast walk (warm-up)
2. 2 minutes base pace
3. 2 minutes moderate pace
4. 1 minute base pace
5. 1 minute tempo pace
6. 1 minute base pace
7. 30 seconds sprint
8. Repeat steps #2-7 twice
9. 3 minutes base pace
10. 2 minutes walk (cool-down)
- Base pace: the speed at which you would go if you were to go out and walk or run 3-5 miles (I go 5.5 mph)
- Moderate pace: slightly faster than base pace. Challenging, but sustainable for a short time. (I go 6.5 mph)
- Tempo pace: slightly faster than moderate pace. Difficult to have a conversation (I go 7.0 mph)
- Sprint: as fast as you can go (I go 8.0 mph)