The last one might be my favorite…There’s so much more to having a strong, stable core than just being able to do abdominal crunches. Sure, you might get definition in your rectus abdominis (6 pack) muscles, but there are many other muscle groups that make up your core, and that might be the least functionally important one. Functional core training is where it’s at… and these 3 exercises are among my favorites. The best part is, you can do them with only a dumbbell or kettlebell. Give them a tr