Stepping stones /treadmill

[redfacewoman]

Morning bloggers a quick question having graduated two weeks ago (and still grinning) i downloaded stepping stones last night - i have still been running three nights a week all be it at the gym and have been concerntrating on speed - now doing 5K in 34 minutes (sloppy grin again) but thought i should give the next bit a go - so is it possible to do this stepping stones thing on a treadmill ?- i can't run outside because of numerous back operations so it's not an option any advise would be most welcome thanks