Challenge Yourself (100 crunches a day for 2 weeks)
Crunches are a useful exercise when used in addition to a good diet and fat loss program to both strengthen your abdominal muscles and improve the appearance of your midsection. The challenge is to do 100 crunches a day, every day, for two week. All varieties of crunches count towards the total. Time to get those abs! 100 crunches a day for 2 weeks Challenge rules 14 days have to be continous - no days off You don't have to do 100 in one...