One of the main things I try to focus on is hitting my ab muscles three times a week. Since I strength train six days a week, I typically only do a 12 minute interval workout on my abs at the end of my workouts three times a week. This is mainly because I focus on strength training exercises that utilize my core and stabilizer muscles so that I don't have to focus on abs everyday.
This is my favorite ab workout to do since it is quick, however; it will leave your abs on fire for the next few days!
3 Rounds 4 Exercises
50 seconds work and 10 seconds rest
1) Russian Twists
2) V ups
4) Side Obliques
You can incorporate a medicine ball to make these exercises more difficult if you want! If you have any questions on how to perform each exercise the full first round is below !