Deb, I don't think she means mileage like the step counter, I think she just means getting it contend to her minutes. You can enter crunches under strength training like bench or squats, etc.
OP, I agree with Unident. If you're doing 100 with no stopping, that's one set of 100. My question is why are you doing 100 crunches?
To the last poster, you would enter 0 for the weight.
I am 5'4".
Starting Weight (4.6.11) 164.6
First Goal 130 - Reached September 2011
Currently maintaining under 120 and working on changing my mental image of myself!
| current weight: 127.2