Dallas Mavericks' Jose Calderon celebrates after scoring a 3-point basket against the Washington Wizards in the first half of an NBA basketball game, Tuesday, Nov. 12, 2013, in Dallas. (AP Photo/Tony Gutierrez)
Plank exercises benefits are many. The plank is one of the best overall core conditioners around, and unlike crunches, it keeps your spine protected in a neutral position. Here are 3 ab workouts to strengthen core and lose excess belly fat.