The Hardest (BUT REALISTIC) Ab Exercise Ever?

Today I have a hard, but realistic, ab exercise for you.

What does that mean?

Don’t expect to do many reps.

Check it out above 🙂

About The Author

Grant Lofthouse

Grant Lofthouse is personal trainer with over 10 years experience who helps his clients break fat loss, muscle building and strength plateaus by using simple strength and nutrition systems.