Plank - Core Exercise

After 3 weeks of trying plank I feel my abs can stop a bullet. I’m up to 3 reps of 45 seconds each. It’s a challenge. Trying to work up to a minute.


Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://rzmhprwww.conquerclub.com/forum/
http://rzmhprwww.conquerclub.com/forum/viewtopic.php?f=8&t=237151