After getting through the Jump Rope Challenge, you’re ready for another! This one is a little tougher, but ideal for swimmers who need to improve and strengthen their core!

Strong abdominal muscles help you do everything better: sit, stand, walk, run, jump and… swim! Abdominal muscles take a lot of work to develop real strength. This challenge will help you get great abdominal strength by making constant, small gains each day, one day at a time.

The 30-day Abs of Steel Challenge!

Print off the chart below and tick off each day as you complete each workout!

Click here to download and print!