If youve listened to the buzz around the fitness world lately or perused the latest workout books, youve probably heard the experts referencing core fitness in some shape or form. Traditionally, strength training has been dominated by exercises focused on isolating the muscles of the arms and legs. In fact, if you look at many of the weight machines that have become popular in modern gyms, youll notice that they require you to sit or recline while you use them.
While th…