Strong delts are the secret to unlocking strength and power in all your other exercises, whether youre pushing, pulling, or carrying weight. And theyll frame out the physique youve been aiming for, too. But shoulders are also a tricky joint that requires extra-special attention. The shoulder is a multifaceted junction where power and vulnerability live close to each other. You can make big strides or big mistakes in shoulder training, simply by altering your exercises by a few inches.

Your key to shoulder training is finding that perfect balance between pushing yourself and staying healthy. Remember, your best talent in the gym is your ability to go to the gym. That means finding a safe approach to challenging one of the most critical muscle groups in the body.

An Anatomy Lesson

To look at the shoulder, we have to start with something called the glenohumeral joint. This is the centration of the head of the upper arm bone (also known as the humerus), which sits in something called the glenoid fossa.

Your shoulder is a traditional ball and socket joint, meaning it can move in multiple planes of motion. In this way, its much like your hip joint, except your shoulder has a greater overall range of motion. Thats because the socket, in this case, is shallow. As a result, many other muscles, everything from your pectorals to your lats to your abs, can influence the long-term health of your shoulders. You need to always keep that in mind when training your shoulders, and when considering the long-term health of your shoulders.

The key muscle group attached to the shoulders is the deltoid, and thats what you normally see on a person with jacked shoulders. The deltoid has three heads, the anterior head, medial head and posterior head. These three regions pull the shoulder in various directions. Your anterior fibers flex the upper arm forward and rotate it toward your body, while the posterior fibers extend it behind you and rotate it away from your body. That means just small turns of the hand alter the primary muscles you use on any movement.

Then theres the rotator cuff. With so many muscles tugging on your shoulder in such a shallow socket, its up to a collection of tendons, ligaments and smaller muscles to provide stability and keep the joint centered. Thats the job of the rotator cuff, a collection of four muscles that work together to keep the head of the humerus safely in the pocket of the glenoid fossa.

Rhythm is Everything

Timing is everything when it comes to shoulder movement. You need certain areas of your body to move at the right times to allow for smooth shoulder movement. In particular, the scapula (your shoulder blade) and the humerus (upper arm bone) must work together for long-term shoulder health.

As the humerus flexes, the scapula must protract forward. As the humerus extends, the scapula must retract. Thats where we find some exercises can ruin our shoulders. If the scapula cant move freely during a motion, but the humerus has to move for the exercise to be done, were inviting injury.

Rethink These Exercises

The fragility of the shoulder joint means we need to be cautious of several exercises in our training. In some cases, we should look for alternative moves entirely. In others, we just need to be cautious of frequency and form. Watch out for these moves.

The Bench Press

This is my favorite exercise, but if done improperly, its an awful move for shoulder health. If youre pressing from a high, flared-elbow angle, the magnitude of force on the tendons and joint is tough on the shoulder. Thats why its critical to always focus on keeping the arms at a 45-degree angle relative to your torso. Additionally, be cautious of your shoulder blades. Especially when benching heavy, the weight can limit your shoulder blades ability to retract. That can hurt your shoulders over time.

The Upright Row

This is widely considered one of the best moves for deltoid development, but its a move thats not typically worth the risk. Your shoulder slips into whats called internal rotation, and as the upper arm elevates, that causes stress on the rotator cuff and supporting ligaments. If you do this, limit your range of motion and dont pull all the way to your chin.

Anything Behind-The-Neck

Behind-the-neck shoulder presses and lat pulldowns are popular from old-school bodybuiding, but theyre not worth the trouble. They place the shoulder in a high five (where your elbow is at a 90-degree angle and your upper arm is parallel to the ground, and thats a position we know promotes joint laxity. We want tighter shoulder joints, not looser ones.

General Shoulder Mechanics

Building battle-tested shoulders starts with enhancing the posterior deltoids. Face pulls are a great way to hammer home proper patterns while developing strength in the stabilizing muscles of the shoulder. This isnt a heavy-weight movement, so dont try to grunt and move the entire stack of weight, or the heaviest band in the gym. Focus on working with higher reps and building proper muscular awareness. How to: Grip the rope or resistance band with hands directly in front and palms facing the ground. In a controlled motion, pull the rope or band back towards your chin while pulling your hands away from one another. Hold the contracted position for a single second count. Slowly return the rope/band back to the starting position. That is one rep. Do 3 sets of 12 to 15 reps. Arnold Press This bodybuilding classic is a great way to work through overhead pressing in the presence of rotation at the arm. It's unlikely to expect completely linear motion with no change in direction through our everyday movements. This move hits the full spectrum of your delts. The key on this, though: Dont turn your palms fully forward at the top. Remember that 45-degree angle as you press. How to: From the seated position, hold one dumbbell in each hand with your palms facing in towards your body. As you press the weight upwards, rotate the hands 180 until the palms are at a 45-degree angle with your torso. Your elbows should be straight now. From the top position, rotate the weight and control is back down to the starting position. That is one rep. Do 3 sets of 8 to 10 reps. Neutral-Grip Cable Press We tend to neglect neutral grip when we press overhead. I will see lots of lifters using the close grip attachment in the weightroom for lat pulldowns but never pressing upwards in the opposite direction that way. The neutral grip allows the shoulder joint to stay in neutral position thatll limit muscular stress on the joints ligaments and tendons. How to: From the tall kneeling position, hold the cable at the top of your chest with your palms facing each other, core tight. Drive the cable just in front of the face and overhead. Once at the fully extended position, control the weight back down to the starting position at the top of the chest. That is one rep. Do 3 sets of 12 to 15 reps. Farmers Carry One of the best moves for shoulder health out there, you need farmers carries not just for strength but shoulder stability. Theyre going to help you train proper body positioning, and theyll challenge your shoulders as you manage a large overall weight. How to: Hold one weight in each hand and stand with a tall posture. Walk forward in a controlled motion maintaining the weights at your side in a stable position. Move with as natural a walking pattern as possible. Control the tall posture for the duration of the set. Do 3 30-second sets, using a heavy weight.