The Anatomy of the Shoulder
It is vital to understand the interactions of the different muscle
groups in the shoulder. The shoulder is built as a ball-and-socket joint
which provides incredible range of motion, but very poor stability. The
rotator cuff, possibly the most frequently injured portion of the
shoulder, is made up of many smaller muscles that can easily become
injured if over used, or used improperly. The deltoid of the shoulder is
the muscle group that covers the exterior of the joint, and is divided
into three separate heads:
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Anterior Deltoid:The front head of the shoulder
muscle flexes and rotates the arm inward. The anterior delts are
important in bench pressing, other chest training, and are usually also stimulated from triceps and biceps exercises. It can be very easy for a traditional bodybuilder to over develop this muscle, leading to a muscular imbalance that can cause injury and posture difficulties.
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Medial Deltoid: Is the side head of the shoulder, and
acts to abduct the arm, which means it brings the arms out and away
from the midline of the body. This muscle activates most during isolated
shoulder abduction movements, such as dumbbell side raises. Development
of this muscle brings width to the upper torso.
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Posterior Deltoid: Extending and rotating the arm outward is the function of the back deltoid. Back exercises
such as rows, chin ups, and pull ups work the rear delts more than most
other exercises. Isolating the posterior deltoid can be done with
reverse flyes.
Shoulder Workout Routines!
Beginner Routine
| Side raises | 3 x 8-12 |
| Standing military press | 3 x 8-12 |
Intermediate Routine
| Side raises | 3 x 8-12 |
| Barbell upright row | 3 x 8-12 |
| Standing military press | 3 x 8-12 |
Advanced Routine
| Side raises | 4 x 8-12 |
| Barbell upright row | 4 x 8-12 |
| Standing military press | 4 x 8-12 |
Pre-exhaust Routine
Superset
| Side raise to Standing military press | 3 x 8-12 |
| Barbell upright row | 4 x 8-12 | |
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