I wanted to share my core workout with you all in the event some of you would like to add it to your arsenal. It's the only ab workout I've done for the past 10 years. I usually do regular sit-ups but I've added the 20lb medicine ball recently to train for a specific competition event. This will help with your overall core strength, endurance, and mental tenacity. 25 sit-ups 25 4-count flutter kicks 25 sit-ups 25 leg raises 25 sit-ups 25 Hello Dolly's 25 sit-ups 25 crunches 25 sit-ups 25 twists