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Resistance Band Pull Apart

The resistance band pull-apart is a simple yet effective exercise that strengthens the upper body and helps improve posture. This exercise targets three key muscles of the upper back: posterior deltoids, trapezius, and rhomboids.

When these muscles are strong and developed, your chest will naturally open, and your shoulders will maintain an upright posture. The resistance band pull-apart also engages the rotator cuff muscles, improving shoulder stability.

This comprehensive guide provides step-by-step instructions for the proper form for the resistance band pull-apart. We’ll also discuss the ideal set and rep schemes for various training goals.

How To Do

  1. Stand with a loop resistance band held between your hands with an overhand grip and hands shoulder-width apart. Bring your arms straight up in front of you, keeping your wrists straight.
  2. Pull the band apart to bring your arms perpendicular to your torso.
  3. Return to the start position.
  4. Breathe out as you pull the band apart; breathe in on the return.

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Tips From Expert

  • Avoid pulling your wrists back as you pull the band apart; keep them neutral throughout the movement.
  • Do not bend your elbows; start with them locked and keep them locked throughout.
  • Pull your shoulders back and keep your core tight to maintain an upright torso position. 
  • As you get stronger, narrow your grip to be within shoulder distance. This will make the exercise more challenging.
  • Keep tension on the band at all times. There should be no slack in the start position.
  • Use this exercise as part of your warm-up before a shoulder and trap workout.

Optimal Sets and Reps

Here is a breakdown of the ideal set and rep structure for the resistance band pull part based on a range of common training objectives.

Training TypeSetsReps
Strength Training3–43–6
Hypertrophy3–48–12
Endurance Training3–415–20+
Power Training3–41–5
Optimal Sets & Reps of Resistance Band Pull Apart

How to Put in Your Workout Split

The resistance band pull-apart can be used as a warm-up for the upper body as well as a stand-alone exercise. You can also sprinkle reps of this exercise between sets of other exercises, such as the bench press.

Here are some ways to add this exercise to your workout split:

Use the resistance band pull-apart as part of your upper body warm-up during your at-home shoulder workouts. Perform 23 sets of 1520 reps with a light resistance band. This will prepare the upper back, shoulder, and rotator cuff muscles, increasing blood flow and mobility.

The resistance band pull-apart can also be part of your actual workout. If you’re following a push/pull/legs program, include it on your pull day. Perform this exercise after a compound movement like bent-over rows or pull-ups. 

If you’re using a body part routine, add resistance band pull-apart to your shoulder workouts.

Pull-apart can also be used as part of your active recovery program. Perform a few sets of this exercise on your non-training days with a lighter band to promote blood flow and reduce the effects of delayed onset muscle soreness. 

Regardless of your training focus, you should begin with a light resistance band to master the proper form. Then, switch to a heavier resistance band based on your rep goal. The weight used should be challenging for the last 23 reps but still achievable with good technique.

Primary Muscle Groups

Posterior Deltoid

Muscles located at the back of your shoulder. Helps with posture.

Posterior Deltoid

The posterior (rear) deltoid makes up the rear portion of the deltoid muscle, sitting on the back of the shoulder. Its muscle fibers originate at the top of the shoulder blade (scapula). They then run diagonally to insert on the upper part of the arm bone (humerus).

The key function of the posterior deltoid is to pull the arm back and down. This is the action you take when reaching behind you to grab a low object.

The posterior deltoid is one of three portions, or heads, of the deltoid muscle. The other two heads are the anterior (front) and medial (side). Each head has a unique function and requires unique exercises to develop.

Secondary Muscle Groups

Serratus Anterior

Small, fan shaped muscle that lies deep under your chest and scapula.

Upper Trapezius

Triangular shaped muscles located between your neck and shoulder blades.

Middle Trapezius

Muscles located in the middle of your back between your upper and lower traps.

Lower Trapezius

Small, triangular shaped muscles located below your middle traps and between your lats.

Brachialis

Muscle which starts at the middle of your upper arm and connects just below the elbow.

Wrist Flexors

Muscles that span the inside of your lower arm, between your elbow and wrist palm side up.

Wrist Extensors

Muscles that make up the back portion of your lower arm, between your elbow and wrist.

Middle Trapezius

The trapezius is a kite-shaped muscle that covers much of the top third of the back. It can be divided into three portions:

  • Upper trapezius.
  • Middle trapezius.
  • Lower trapezius.

The middle traps originate on the upper thoracic spine and are inserted along the sides of the shoulder blades. Their function is to draw the shoulder blades together. 

Brachialis

The brachialis lies under the biceps brachii muscle in the upper arm. The muscle fibers originate halfway down the upper arm bone. They insert the ulna, which is one of the forearm bones.

The brachialis's main function is to assist with elbow bending. During the resistance band pull-apart, it stabilizes the arms in the fully extended position. 

Upper Trapezius

The upper trapezius originates on the top two-thirds of the spine and at the base of the skull. It inserts the outer edge of the shoulder blades and clavicles. The primary function of the upper traps is to lift the shoulders up toward the ears. 

During the resistance band pull-apart, the upper traps help stabilize the shoulder girdle, which helps you maintain an upright posture.

Lower Trapezius 

The lower trapezius depresses the shoulder blades. During the band pull-apart exercise, the elevation of the shoulder blades is counterbalanced by the lower trap. This encourages symmetrical movement, so the torso remains stable throughout the movement. 

Wrist Flexors 

The wrist flexors are a group of five muscles on the front of the forearm. Their main job is to flex the fingers and wrist. They help you maintain a strong grip on the resistance band to keep the band taut.

As you pull the band apart, the wrist flexors contract isometrically (without moving). This helps to stabilize the wrist joint. 

Wrist Extensors 

The wrist extensors are a group of four small muscles on the back of the forearm. Their main job is to straighten the wrist and extend the fingers. The wrist extensors contract isometrically as you perform the resistance band pull-apart exercise. 

This acts to stabilize the wrist joint to maintain a neutral wrist position. This prevents the wrist from extending backward, compromising the exercise's efficiency. 

Serratus Anterior 

The serratus anterior is located on the side of the rib cage, running from the upper ribs to the shoulder blade. Its main job is to move the shoulder blade forward, which is needed for pulling, pushing, and reaching.

When you perform the resistance band pull-apart exercise, the serratus anterior pulls the shoulder blade forward as you pull the band apart.

Equipment

Resistance Band

This can be carried around your home or gym and used for a full-body workout. Ensure you use the correct tension. Check for wear and tear regularly.

Variations

Exercises that target the same primary muscle groups and require the same equipment.

Alternatives

Exercises that target the same primary muscle groups and require the different equipment.

Who Should Do?

Athletes

The resistance band pull-apart benefits athletes across various sports, including swimmers, tennis players, and basketball players. The movement strengthens and stabilizes the posterior deltoids, trapezius, and rhomboids, increasing muscle endurance for repetitive sports actions.

This exercise will especially benefit sports that involve overhead movement and repetitive shoulder action. By adding the movement to their workout program, athletes can optimize shoulder health and lower the risk of overuse injury.

Athletes may also benefit from the resistance band pull-apart exercise as a pre-game warm-up.

People Recovering From Shoulder Injury

The resistance band pull-apart offers a low-impact way to rebuild strength and stability after a shoulder injury. This popular physical therapy rehab exercise progressively strengthens the shoulder girdle muscles.

Using a resistance band helps you exercise with a controlled, fluid movement pattern. This improves your range of motion and helps restore normal shoulder function. If you are recovering from an injury, we recommend that you exercise under the guidance of a physical therapist.

Who Should Not Do?

People With Acute Shoulder Pain

People with recent severe shoulder injuries should not do the resistance band pull-apart. Examples are a rotator cuff tear, shoulder impingement, and a labral tear. Work closely with your physical therapist, who will tell you when to add the exercise to your rehab routine. 

People With Chronic Shoulder Instability

If you are prone to frequent shoulder dislocation you should avoid the resistance band pull-apart. The dynamic movement in this exercise will likely stress unstable or weak joints further. Focus instead on exercises that will not aggravate your instability, such as isometric holds and arm wall slides.

Benefits Of The ​Resistance Band Pull Apart​

Builds Muscles

The resistance band pull-apart strengthens and builds mass in several key upper back muscles, including the posterior delts, trapezius, and rhomboids. The combination of progressive resistance, anabolic nutrition, and recovery can build lean muscle in these areas. 

Enhances Shoulder Strength

Consistent training with the resistance band pull-apart improves shoulder strength. This exercise stresses the rotator cuff muscles and the posterior delts, traps, and rhomboids. By progressively increasing the resistance used, you will improve muscular endurance and explosive strength. 

Improves Posture 

The resistance band pull-apart helps with shoulder and spinal alignment. This, in turn, helps promote good posture and overcome imbalances so that one is more upright and balanced in how one stands and moves. 

Frequently Asked Questions

What muscles do band pull-aparts work?

The resistance band pull-apart exercise mainly works the posterior(rear) deltoid muscle. Secondary activated muscles are the trapezius, rhomboids, serratus anterior, wrist flexors, and extensors.

What are the results of band pull-aparts?

Band pull-aparts will strengthen and stabilize the muscles of the shoulder girdle. They also improve posture and strengthen the main muscles of the upper back, such as the posterior delts, trapezius, and rhomboids.

Are band pull-aparts safe?

Yes, the band pull-apart is a safe exercise when done correctly. It is a low-impact movement that involves stretching a band, which provides a smooth, controlled range of motion.

What are the disadvantages of resistance bands?

The main disadvantage of resistance bands is that they provide less eccentric or negative resistance than free weights. As a result, you lose some of the muscle and strength-building benefits of the lowering phase of the exercise.

Resources

Endomondo.com refrains from utilizing tertiary references. We uphold stringent sourcing criteria and depend on peer-reviewed studies and academic research conducted by medical associations and institutions. For more detailed insights, you can explore further by reading our editorial process.

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