One of the most effective exercises for targeting the rear deltoids is the cable crossover for rear delts. This exercise, performed on the cable machine, isolates the rear delts and helps improve posture, shoulder stability, and strength.
In this guide, we’ll cover everything you need to know about the cable crossover rear delt fly, from how to perform it correctly to answering common questions like “Do rear delts make shoulders look bigger?” and “Are cable rear delt flys effective?”. By the end, you’ll be equipped with all the knowledge you need to make rear delt training an essential part of your routine.
What is a Cable Crossover Rear Delt Fly?
The cable crossover rear delt fly is an isolation exercise that targets the rear deltoids using the cable machine. What makes this exercise so effective is the constant tension provided by the cables, which ensures your muscles stay engaged throughout the entire movement.
Unlike free weights, where the tension fluctuates at different points of the range of motion, cables provide consistent resistance, ensuring that your rear delts remain under load for longer periods. This makes it an excellent choice for those looking to focus specifically on shoulder development, particularly in the rear delts.
Why Focus on Rear Delts?
The rear deltoids are a critical muscle group for developing balanced shoulders. When these muscles are developed, they give your shoulders more width, helping you look broader and more symmetrical. Neglecting the rear delts can result in a less proportionate shoulder appearance, even if the front and middle delts are well-trained.
Strengthening the rear delts also improves posture by pulling your shoulders back and preventing the rounded shoulders often caused by sitting for extended periods or performing repetitive forward motions. In addition, well-developed rear delts help stabilize the shoulder joint, reducing the risk of injury during overhead and pressing movements.
How to Do Cross Cable Rear Delt Flys?
Performing the cable crossover rear delt fly with proper technique is essential to target the right muscles and avoid injury. Here’s how to do it:
Step 1: Set Up the Cables
Start by adjusting the cable pulleys to chest height on both sides of the machine. Attach single-handle grips to each pulley.
Step 2: Position Yourself
Stand facing the machine with your feet about shoulder-width apart. Take a slight step back to create tension on the cables and hold the handles in each hand with your palms facing each other. Extend your arms straight in front of you at shoulder height, keeping a slight bend in your elbows. This is your starting position.
Step 3: Engage the Rear Delts
Begin the movement by pulling the cables outwards in a wide arc, keeping your elbows slightly bent. Focus on pulling your arms back as if you were trying to squeeze your shoulder blades together. Make sure your arms move horizontally and not too much vertically, as this could engage other shoulder muscles instead of focusing on the rear delts.
Step 4: Return to the Starting Position
Slowly reverse the movement, controlling the cables on the way back. Keep tension on the rear delts throughout the entire movement and avoid allowing your arms to swing freely. This ensures the muscles stay engaged and maximizes the effectiveness of the exercise.
Step 5: Repeat
Perform 3-4 sets of 10-12 reps, making sure to use a weight that allows you to complete each set with proper form.
Do Rear Delts Make Shoulders Look Bigger?
Yes, developing the rear delts plays a significant role in making your shoulders look broader and more defined. Many people focus primarily on the front and lateral delts, but the rear delts contribute just as much to the overall shoulder aesthetic. When trained properly, the rear delts add depth and volume to the back of the shoulders, giving the appearance of a fuller, more balanced upper body.
Additionally, strengthening the rear delts can improve your posture. As the rear delts help pull your shoulders back, you’ll appear more upright and confident, which further enhances the overall appearance of your shoulders.
Are Cable Rear Delt Flys Effective?
Cable rear delt flys are highly effective for isolating the rear delts. One of the key benefits of this exercise is the continuous tension provided by the cables, which keeps the muscles engaged throughout the entire movement. This constant resistance is something that’s difficult to achieve with free weights alone.
Additionally, cable machines allow you to fine-tune the exercise by adjusting the height of the pulleys or the angle of your body. This flexibility enables you to target the rear delts from different angles and optimize the muscle activation.
Compared to other rear delt exercises, such as dumbbell flys, the cable rear delt fly offers more control and can be easier on the joints due to the smooth, consistent resistance.
Are Cable Crossovers Good for Rear Delts?
Absolutely! Cable crossovers are excellent for targeting the rear delts. The machine offers constant tension, allowing you to perform a controlled movement that isolates the rear delts more effectively than other exercises. By adjusting the pulleys to different heights or angles, you can alter the direction of the pull and emphasize different parts of the rear deltoid muscle.
Cable crossovers also reduce the potential for using momentum to complete the lift, which can happen when using dumbbells. This ensures that the rear delts do most of the work, leading to better muscle activation and growth.
Cross Cable Rear Delt Fly Muscles Worked
While the rear delts are the primary muscle group engaged during the cable crossover rear delt fly, several other muscles play a role in the movement. These include:
Primary Muscle: Rear deltoids (posterior shoulder)
Secondary Muscles:
- Trapezius (upper back)
- Rhomboids (between the shoulder blades)
- Infraspinatus (part of the rotator cuff)
- Triceps (stabilizers)
By engaging these additional muscles, the cable crossover rear delt fly helps improve overall shoulder and upper back strength, which contributes to better posture and performance in other exercises.
Cross Cable Rear Delt Fly Alternatives
While the cable crossover rear delt fly is a fantastic exercise, there are several alternatives that can also target the rear delts effectively:
Dumbbell Rear Delt Flys:
A free-weight option that can be performed seated or bent over. It’s great for isolating the rear delts.
Face Pulls:
Done with a rope attachment on a cable machine, face pulls target the rear delts while also engaging the traps and rhomboids.
Reverse Pec Deck Machine:
This machine is similar to the rear delt fly and isolates the rear delts by moving the arms in a reverse fly motion.
Bent-Over Barbell Reverse Flys:
A traditional option for rear delts that also helps strengthen the upper back.
How to Choose the Right Alternative
If you’re looking to focus on rear delt isolation, dumbbell rear delt flys or reverse pec deck machine exercises might be the best alternatives. However, face pulls provide a broader range of upper back muscle engagement, making them ideal for improving posture and overall shoulder health.
Cable Rear Delt Fly vs Face Pull: Which is Better
Both cable rear delt flys and face pulls are highly effective for rear delt development, but they differ slightly in their execution and muscle activation.
Cable Rear Delt Fly:
- Directly targets the rear delts.
- Offers more control and consistent resistance.
- Can be adjusted for different angles and resistance levels.
Face Pulls:
- Engages the rear delts, upper traps, and rhomboids.
- Performed with a rope attachment, pulling the rope toward the face.
- Excellent for posture improvement by strengthening the upper back.
Which Should You Choose?
If your primary goal is to isolate the rear delts, the cable rear delt fly is the better choice. However, if you want to target a broader range of upper back muscles, improve posture, and reduce shoulder tension, face pulls should be added to your routine.
Conclusion: Master the Cable Crossover Rear Delt Fly for Bigger, Stronger Shoulders
Incorporating the cable crossover for rear delts into your workout routine is a fantastic way to develop strong, well-defined shoulders. By focusing on the rear delts, you’ll not only improve the overall aesthetics of your shoulders but also enhance posture and shoulder stability.
Remember, the key to success with the cable rear delt fly is using proper form and consistently challenging the muscles with progressive resistance. Combine this exercise with others targeting the front and middle delts for a balanced shoulder workout that will help you achieve the broad, sculpted shoulders you’ve been striving for.