Plank Exercise – 15 Minutes Class For Perfect Plank Workout For Women https://youtu.be/QOkvvyCH2Rg The plank is one of the best exercises for a flat, toned stomach because it works all the muscles in your core, including the rectus abdominus (the “six-pack muscles” you can see), transverse abdominus, internal and external obliques, hips, and back.
Not easy… but I really want to include planks to my workouts… Thank you for explain it so well. How often do you have to do planks?