Lateral deltoid. If you move your arms out to the side, you are using the largest deltoid muscles: the lateral. Posterior deltoids. You use your posterior deltoids when you reach backward or ...

The deltoid muscle has three distinct parts: the anterior (front), lateral (side), and posterior (rear) deltoid. Each part ...

Raising your arms to the side in a plane-like position is also called a shoulder abduction. Lateral raises muscles worked primarily include the lateral deltoid muscles. Because of the rotating ...

This group of muscles is made up of three heads: the anterior deltoid (front), medial deltoid (side), and posterior deltoid (back). Lat raises will also engage your upper traps and rotator cuff ...