Shoulder development is key for the person seeking physical aesthetics. They provide the broad look, leading into a V-taper. Of course due to individual differences we may or may not be lacking in this department. I for one definitely was and probably still am, I would be what you call a blocky physique, and therefore I focus on my deltoids a lot during my training.
An example would be Daniel Craig and David Beckham, both have wide hips and overall quite a blocky appearance. However, Daniel unlike David has developed his shoulders to a greater degree, therefore giving him a broader look.
![Screen Shot 2013-11-23 at 16.58.06](https://stephenhallrevive.wordpress.com/wp-content/uploads/2013/11/screen-shot-2013-11-23-at-16-58-06.png?w=234&h=300)
So if you are in the unfortunate position like me and have a large waist and narrow shoulders, then you are in luck. Here I am going to share my strategy to get maximal shoulder hypertrophy based on movements.
![Screen Shot 2013-11-23 at 17.12.20](https://stephenhallrevive.wordpress.com/wp-content/uploads/2013/11/screen-shot-2013-11-23-at-17-12-20.png?w=199&h=300)
Deltoid Anatomy
- Anterior (top diagram)
- Middle (middle diagram)
- Posterior (bottom diagram)
As you can see these make up the majority of your shoulder musculature. There are important stabilisers as well but here I am focussing on muscle hypertrophy. Each of these can be somewhat isolated and are involved in different exercises to varying degrees. Depending on your past training history you may already have an imbalance between the three, and correcting that is not only essential for health but will also enhance your physique.
Anterior Deltoid
Main Roles:
- Shoulder Flexion- this is the act of lifting your upper arm in front of you towards your face e.g. front raises, vertical press.
- Transverse Flexion- this is the movement with your arms straight out in front of you closing them together e.g. chest fly.
- Arm Internal Rotation- this is the act of bending your arm at the elbow by your side with your hand to your side and then rotating it internally towards your front e.g. pec dec.
- Arm Abduction- this is the act of raising the upper arm outward from the side of your body e.g. lateral raise.
- Shoulder Stability- help maintain shoulder alignment.
The above might be about as clear as mud, but I am going to break it down for you. Due to the amount of pressing most of us do, the anterior deltoids are unlikely to be underdeveloped. When performing something like a chest press there is transverse flexion, internal rotation and shoulder flexion taking place. Horizontal pressing movements therefore are not solely a pectoral exercises, but should be considered a combined shoulder and chest movement. Research shows this to be especially true when we are using barbells or dumbbells over machine presses. Also, it’s interesting to note that as you move from decline through to a vertical press the activity of the anterior head increases. Furthermore, when performing vertical or incline presses a wide grip has been seen to illicit greater EMG when compared to a narrow grip. Therefore, I am going to assume you will be doing a variety of presses, and consequently you do not need any direct anterior deltoid work.
Middle Deltoid
Main Roles:
- Arm Abduction- this is the act of lifting your arm away from your body to your side with the arms internally rotated e.g. lateral raise.
- Shoulder Stability- help maintain shoulder alignment.
As you can see the middle deltoid is involved in far fewer movements, also there are no compound exercises that specifically abduct the arm. Therefore, I definitely see a case for middle deltoid isolation exercises, which I will come to later. Be aware that their is a caveat here that the arm needs to be internally rotated, that means you abduct the arm with your pinkies and elbows facing up. Furthermore, as you can see in the above diagram the middle deltoid is the prime part of the shoulder that will give you that aesthetic capped look.
![Arnie using his middle delt](https://stephenhallrevive.wordpress.com/wp-content/uploads/2013/11/screen-shot-2013-11-24-at-12-58-46.png?w=300&h=255)
Posterior Deltoid
Main Roles:
- Transverse Extension- this is the act of having your arms out in front of you and pulling back, bending your elbows and retracting your scapular e.g. face pull.
- Transverse Abduction- this is the act of having you arms straight out in front of you and bring them to your sides e.g. reverse fly.
- Arm External Rotation- this is the act of having your arm bent and elbow by your side and rotating your arm so your hand moves from your front to your side e.g. cable external rotations.
- Shoulder Hyperextension- this is the act of moving your arm from straight out in front and extending it behind you e.g. straight cable arm pull down.
- Shoulder Stability- help maintain shoulder alignment.
Therefore the posterior deltoid is involved when we are doing horizontal or vertical pulls, as transverse extension and abduction is taking place. So like the anterior deltoid they do get a fair amount of work, if you are doing back exercises. However, they are not involved to the degree the anterior deltoid is during presses, they get best utilised when strict transverse extension takes place, as the stronger muscles cannot take over.
Practical Application
Now we have an understanding of the movements that each head is involved in, there is a clear imbalance if we just relied on our compound push and pulls to dictate our shoulders development. Not only is an imbalance not a good look, but it can disrupt shoulder stability, and lead to deteriorating shoulder health. So how should one go about putting in some isolation work for the deltoids?
- Don’t isolate the anterior deltoid, as stated it gets enough stimulation already.
- As a general rule of thumb implement middle and posterior deltoid isolation work as assistance exercises.
- Don’t go below 6 reps. To maximise hypertrophy of any muscle, you want to use a range of reps and angles. However, you will find it very hard to work the deltoids in isolation with heavy work, because the larger muscles will take over.
- Really focus on the deltoid head that you are trying to isolate.
Exercises:
- Middle Deltoid: DB Lateral Rais
es, Banded Lateral Raises, Cable Lateral Raises, Side Lying Incline Bench Lateral Raises.
- Posterior Deltoid: Face Pulls, Cable Kneeling Reverse Fly, Standing Cross Cable Reverse Fly, Prone Fly, Bench Prone Fly.
Variety is the spice of life and to get the most growth out of your muscles you will want to alternate between the above exercises. By simply changing the body position we are able to continually create new training stimuli.
So if you want strong broad, healthy shoulders then I recommend you analyse your current workout regime and physique. See if they’re currently balanced and if not implement the above and get ready to get sexy as hell.
Resources:
- Delavier F. Strength Training Anatomy (Third Edition). 2010
- McCaw, Friday. A Comparison of Muscle Activity Between a Free Weight and Machine Bench Press. Journal of Strength and Conditioning Research. 1994
- Barnett, Kippers and Turner. Effects of Variations of the Bench Press Exercise on the EMG Activity of Five Shoulder Muscles. Journal of Strength and Conditioning Research. 1995
- De Araújo Rocha Júnior, Gentil, Oliveira and Carmo. Comparison among the EMG activity of the pectoralis major, anterior deltoidis and triceps brachii during the bench press and peck deck exercises. Revista Brasileira de Medicina do Esporte. 2007