How to do a perfect plank
from Women's Health
Even though it's not super exciting, this simple body weight move is really effective — not to mention, one of the best ways to make your abs look fire. “The plank is a great exercise for strengthening your deep inner core: your transverse abdominis, multifidus, diaphragm, and pelvic floor,” explains Adam Rosante, certified personal trainer and author of "The 30-Second Body."
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