Bodybuilding Anatomy [RECENT]

it. Competition posing requires precise control over the nervous system to contract specific muscles while keeping others (like the midsection) tight and controlled.

The back is anatomically complex. You cannot "see" your back muscles working, so you must visualize the anatomy. BodyBuilding Anatomy

For example, the Pectoralis Major originates on the sternum/clavicle and inserts on the humerus (upper arm bone). When you perform a flye, moving your arms (insertion) across your chest (origin) creates the contraction. You cannot "see" your back muscles working, so

The chest is comprised of two main sections: The chest is comprised of two main sections:

When a bodybuilder does a "lat spread," they are externally rotating the humerus while depressing the scapula, using the lats' broad origin to create the "V" shape.

To build a competitive or high-level physique, trainers focus on three primary anatomical goals: Hypertrophy

: Stimulating muscle growth by working muscles close to failure (typically 5–30 reps). Stimulus-to-Fatigue Ratio (SFR)