The four main muscles of the deep core—transverse abdominis, multifidus, pelvic floor and the diaphragm—work together to keep ...

Think about your back. It's a complex and powerful structure, vital for almost any movement you make, from lifting a grocery bag to sitting upright at your computer. Training it properly isn't just ...

EDITOR’S NOTE: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist, a mind-body coach in professional sports, and the author of “Practical Solutions for ...

The upper back is an important enough area to train that many gym rats devote two whole days to it each week—this is what “pull day” really means. With strong lats and other upper back muscles, you ...