Is it true that doing 10 crunches in half an hour is better then doing ten in ten minutes?

Has anyone ever done Tony Horton's 10 Minute Trainer workout? Do you actually get a workout in only ten minutes at a time? ...

I am trying to lose weight and this is the excersize im doing each week : On a monday I walk home from school and then do ten...

I've heard that exercising once every two days is better and will help you loose weight faster is that true? Because I only n...

I wake up at about 8 a.m. and do 20 minute walk to drop my sibling off at school, then when I get back I do a 1 hour workout....

What can I do that would burn off 10 calories? Just out of interest.

okay, so I have a bit of a tummy.. would doing like 100 crunches a day help??? I also heard that crunches are better than pu...

I can do 356 in that amount of time. I would like to be able to do more?

How many crunches should I do a day for a workout?

I am 19 years old, 5 feet 8 inches and I weigh 140. When I went to college last year I weighed no more than 130 and it was g...

I want a better stomache. right now it's smooth, flat, and a little musceled. but I want more definition. I love running but...