Tighten Your Core and Lower Body With Reverse Planks

The Best Abdominal exercise to both strengthen your core and firm your waist shortens the fibers in the front and sides of the abdominal wall. The reverse plank is not a sophisticated exercise, and it needs no specialized equipment, so it is sometimes an ignored exercise for the core. However, it hits postural back muscles and even the glutes and hamstrings while also strongly engaging and shortening the muscles of the abdominal wall.

Importantly, if you are committed to tightening your abs, you should raise the aerobic plan in your workout to twice each day if possible. That does not mean you need to live in the gym, as the second aerobic piece could be a brisk 30- to 40-minute walk in the evening.

Via: FITNESS Rx