"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TO MAKE THE arm muscle gains you want, you'll need to be intentional. Following a balanced workout split ...

Adding in some dynamic stretching (moving your muscles and joints through a full range of motion with no weight) is a great ...

The triceps extension targets all three heads for sleeve-filling size and lockout strength without taxing your shoulders or ...

Struggling to do pull-ups or looking to get stronger? A fitness expert shares 10 simple upper-body exercises to help you ...

Fitness coach and ATHLEAN-X founder Jeff Cavaliere explained how to build the lats and a V-taper with two dumbbell-only ...

Shoulder pain can significantly interfere with your exercise activities, but you can still safely perform an upper-body workout with a shoulder injury. The rotator cuff is a group of four muscles — ...