A Few New Thought About Abs, and How to Use Them

For years, the New York Times tells us, trainers have been advising people to pull in their stomachs in a manner intended to engage a deep abdominal muscle called the transverse abdominus. That, common wisdom held, was the best way to protect the lower back from impact or injury.  Now a few contrarian trainers are arguing that the move is a waste of time, and a waste of training. The best way to protect a back, they say, is to brace all abdominal muscles.  How to do that? Read more in the New York Times.