Is there a walk mode?

I have my treadmill in my Wii room. I'd like to be able to strap on the sensors and have the game register my calories burned and monitor my heart while I do the treadmill. Is there a way to set an ongoing 20 minute walk?|||Ah, I figured out that I can make a workout lining up about 10 skipping sessions and jog them out on the treadmill--perfect|||I was thinking to line up a bunch of the run around the basketball courts and try that. Except for the waiting between reloading exercises it might work.
I'm not sure what the game looks for in movements on step aerobics but those come in 10 minutes sessions if that would work. Less down time between exercise.