The phrase refers to a weight training program focused on developing the deltoid muscles. It describes a specific goal within a larger fitness system: the targeted hypertrophy, or muscle growth, of the shoulder region. An example would be the inclusion of lateral raises, front raises, and overhead presses within a structured workout plan.
The importance of targeting this muscle group stems from both aesthetic and functional benefits. Well-developed shoulders contribute to a balanced physique and improved posture. Functionally, strong shoulders are essential for a wide range of daily activities and athletic movements, including lifting, pushing, and throwing. Historically, shoulder development has been a key component of physical fitness and strength training regimens.