Do these 21 ab/core exercises together for the best core tightening, ab flattening combo! For more, join GymRa free for 30 days & access 300 training templates in GIF format, as well as 500 videos tha(Best Weight Training)
Now this is how to get fit and have fun! Get ready to work your legs, pelvic muscles, and core with this fun dance workout to Katy Perry's hit song Dark Horse. Be sure to keep your core tight the whole time.