Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

Here's everything you need to know to get started packing on muscle with dumbbells, kettlebells, and barbells.

For a program to be most effective, Washington recommends sticking to it for at least four to five weeks before changing it ...

A personal trainer shares a four-week workout program designed to help you build strength and muscle in the gym or at home, ...