The muscles worked by push-ups include the chest, shoulders, back, core, and arm muscles. This classic exercise has held its ground as countless fitness trends have come and gone and is a great ...

Return it back down slowly and repeat. Why: Often neglected because it works the brachialis, an invisible muscle lower down your upper arm — but one essential for bigger biceps. Train it well ...

Yup, this minor muscle group on the back of the arms is the key to overall fitness. "The triceps are a super, super important muscle group," says Jacquelin e Kasen, CPT, a Miami-based coach and ...