From Laura, Age 14 - 02/18/06 - IP#: 67.83.87.xxx  Click here to reply  
Ht. 5'5, Wt. 180 - Crunches only burn 100 cals/hour!!??
Reply from Beth, Age 14 - 02/18/06  - IP#: 84.69.74.xxx
they're more for toning than losing fat		 
Reply from charlotte, Age 15 - 02/18/06  - IP#: 71.112.39.xxx
yes but they give u a reallly tight looking stomach