Add Yahoo as a preferred source to see more of our stories on Google. Woman performing hanging knee tucks. When you want to work your core, back, and arms in one go, then a hanging knee tuck needs to ...

Patrick Murphy never does hanging knee raises because they work the hip flexors more than the abs. The celebrity trainer said Russian twists are ineffective too, and can lead to back pain. Instead, he ...

You'll have to do a little more than that, of course - but this high-powered workout move is all about the pullup bar. The hanging oblique knee raise is simple to perform, but it'll work a ton of ...