Here is another variation of a Treadmill workout I did in 2010. No speed is indicated so I pushed myself. I probably couldn't run faster than about 5.5 for the 60s sprint at that time and obviously it was a short Treadmill drill as I was just getting into shape. Not sure what I could this at now as I have been hurt and out of running shape for much of this year.
Treadmill
Warm-up with a 5 min walk.
- 60/60s - Run/Walk (5x)
- 30/30s - Run/Walk (5x)
- 10/10s - Run/Walk (3x)
- 10/20s - Run/Walk (2x)
- 10/30s - Run/Walk (2x)