Who knew that having your butt up during a plank was actually a whole new exercise? This ab circuit, which works that exercise into it, will tighten your tummy and have you ready for crop top season in no time.
Printable Workout to Customize and Print: Ultimate At-Home No Equipment Printable Workout Routine for Men and Women 2468 363 2 Helen Hanson Stitt Fitness InStyle-Decor Hollywood love it (Five Minutes Workout)
Best abdominal core workouts by Darebee & NeilaRay for stronger abs, allowing you to implement much more variety than your traditional sit-up. Boxer abs aren't only a great way to mix up your workout, but is the best way to build up those abs!