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The scapula, or shoulder blade, is a small triangular bone in the upper back that sits above the rib cage. It is important for completing daily movements and creating smooth upper-body movements. Studying the scapular muscles involves understanding the anatomy of the shoulder and how the scapula moves in different directions with the help of specific primary muscles. This understanding can be enhanced by performing and mimicking muscle actions, and through exercises that strengthen the scapular muscles and improve shoulder mobility and health.
| Characteristics | Values |
|---|---|
| Shoulder blade bone | The scapula is the bone that sits above the rib cage in the upper back |
| Shoulder joint | The scapula meets with the head of the humerus (the bone of the upper arm) to create the shoulder joint |
| Movement | The scapulae can move in six directions, with each movement produced by specific primary muscles |
| Shoulder injuries | The role of the scapula in shoulder injuries has been widely investigated, with the majority of studies focusing on shoulder impingement and rotator cuff disease |
| Shoulder health | Exercises such as push-ups, reach and row, and face pulls can help strengthen the muscles around the scapulae and improve shoulder health |
| Muscle balance | Rehabilitation exercises for scapular muscle balance should focus on high activation of the lower and middle trapezius and low activity of the upper trapezius |
| Muscle fatigue | Studies have shown that muscle fatigue can adversely affect scapular positioning and shoulder proprioception |
| Innervation | The scapula receives innervation from the cervical plexus (C3, C4) and the dorsal scapular nerve |
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What You'll Learn
Shoulder anatomy and kinesiology
The shoulder is a structurally and functionally complex joint, as it is one of the most freely movable areas in the human body. The scapula, or shoulder blade, is the bone that sits above the rib cage in the upper back. It creates the shoulder joint where it meets the head of the humerus, the bone of the upper arm. The scapula can move in six directions, and each movement is produced by specific primary muscles.
The shoulder girdle, which connects the upper limb to the axial skeleton via the sternoclavicular joint, is composed of the clavicle and the scapula. Four joints are present in the shoulder: the sternoclavicular (SC), acromioclavicular (AC), scapulothoracic, and glenohumeral joints. The high range of motion of the shoulder comes at the expense of decreased stability of the joint, making it prone to dislocation and injury.
To study the shoulder anatomy and kinesiology, it is helpful to learn the correct form of commonly practiced exercises to target specific muscles and prevent injury. A useful way to learn anatomy is to physically move and mimic the actions of the muscle you are studying. Look at a picture of the muscle, find it on your body, and picture how it contracts and moves.
There are several exercises that can help strengthen the scapular muscles and improve shoulder mobility, such as push-ups, shoulder shrugs, and face pulls. These exercises can help improve posture, reduce injury risk, and build a strong upper body.
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Shoulder injuries and scapular dysfunction
The scapula, or shoulder blade, is a triangular bone in the upper back that forms the socket in the shoulder joint. The scapula is supported by a complex system of muscles that work together to facilitate arm movement.
Scapular dyskinesis can be caused by any bony or soft tissue injury around the shoulder, which can alter the role of the scapula at rest or in motion. This can lead to abnormal scapular motion patterns and a higher risk of injury. The most common pathologies associated with scapular dyskinesis include acromioclavicular instability, shoulder impingement, rotator cuff injuries, glenoid labrum injuries, clavicle fracture, and nerve-related issues. Athletes are particularly susceptible to changes in the resting position of the scapula due to the development of core muscle imbalances that alter spinal curvatures and soft tissue tensions.
Treatment for scapular dysfunction usually involves physical therapy, which focuses on strengthening and stretching the muscles around the shoulder to restore proper scapular position and motion. In some cases, surgery may be required to repair or reconstruct injured tissues, followed by rehabilitation.
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Shoulder rehabilitation exercises
The scapula, or shoulder blade, is the bone that sits above the rib cage in the upper back. It creates the shoulder joint where it meets the head of the humerus, the bone of the upper arm. The scapula can move in six directions, and each movement is produced by specific primary muscles.
Push-up Plus
Get into a regular push-up position with your hands underneath your shoulders and your body in a straight line from head to heel. Instead of locking your elbows, finish the push-up with a flare by protracting your shoulder blades and pushing further away from the floor. This strengthens the serratus anterior, a muscle that attaches the scapula to the rib cage, and is essential for shoulder health and performance.
Reach and Row
Performed with a cable or resistance band, this exercise is a standard single-arm row with a twist. Reach forward, moving one shoulder blade away from the other, and pull the rope or band towards your face by squeezing your shoulder blades together. Hold this position for two seconds, then slowly return to the starting position. This trains your serratus anterior, giving your upper back an active stretch and improving shoulder mobility.
Face Pull
Hold a cable machine rope attachment or resistance band with an overhand grip and step back until your elbows are extended with some tension. Pull the rope towards your face, strengthening the muscles between the scapulae and improving posture and shoulder health.
Wall Push
Stand facing a wall with your hands placed on the wall at chest height and shoulder-width apart. Keep your arms locked out and palms flat on the wall. Without bending your arms, reach with your sternum towards the wall until both your shoulder blades come together behind you. Then, push your sternum away from the wall until both scapulae open up and your upper back is slightly rounded.
It is important to listen to your body and only push yourself to your comfort limit. These exercises can be done as a preventive part of your daily training routine or as a warm-up. For a well-structured conditioning program, be sure to consult your doctor or physical therapist.
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Muscle-building scapular exercises
The scapula, or shoulder blade, is a triangular-shaped bone that sits flat on your upper back over your ribs. It is important to have good scapular stability as it allows for smooth upper-body movements and helps with completing daily movements such as raising your arms over your head.
- Scapular Squeeze: Lie on your stomach with a rolled-up towel underneath your forehead and both arms down by your sides, palms facing in. Gently draw your shoulder blades back towards your spine and down towards your waist.
- Face Pull: This exercise strengthens the muscles around your scapulae and improves shoulder strength. Hold a cable machine rope attachment or resistance band with an overhand grip and step back until your elbows are extended with some tension. Pull the rope or band towards your face by squeezing your shoulder blades together. Hold this position for two seconds and slowly return to the starting position.
- Reach and Row: This is a standard single-arm row with a twist. Performed with a cable or resistance band, you will initiate the movement by reaching forward, moving one shoulder blade away from the other. This trains your serratus anterior, giving your upper back an active stretch.
- Push-up Plus: Get into a regular push-up position with your hands underneath your shoulders and your body in a straight line from head to heel. Lower your chest until it almost touches the floor, then push up. Then, push your hands through the floor, protracting your shoulder blades and rounding your upper back.
- YTWL Movement: This is performed with a resistance band. Stand holding the band with both hands, palms facing each other, about shoulder-width apart. There should be no tension in the band. Pull the band apart with both arms to the sides as wide as possible, keeping them about shoulder height.
These exercises can be incorporated into your daily training routine or as part of a warm-up. Remember to listen to your body and only push yourself to your comfort limit.
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The importance of scapular stability
The scapula, or shoulder blade, is a triangular bone located just behind the shoulders, above the rib cage in the upper back. It is instrumental in creating the shoulder joint, where it meets the head of the humerus, the bone of the upper arm. The scapula can move in six directions, with each movement produced by specific primary muscles.
Scapular stability is crucial for athletes, especially in sports like baseball and cricket, where throwing is a prominent and high-velocity action. Without proper scapular stability, athletes may be at risk of serious shoulder injuries, such as impingement or cuff tears. Additionally, scapular stability exercises can help improve posture, reduce the risk of injury, and build a strong upper body.
To study scapular stability, it is essential to understand the anatomy of the scapular muscles and their functions. Visual aids and movement mimicry can be helpful. Moving and contracting the muscle you are studying allows you to observe and experience its associated actions and movements. Additionally, performing scapular stabilization exercises, such as the face pull, reach and row, push-up plus, and shoulder shrugs, can help strengthen the scapular stabilizers and improve scapular health.
Overall, the importance of scapular stability lies in its ability to provide a stable foundation for upper-body movements, reduce the risk of injuries, and contribute to overall shoulder health and function.
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Frequently asked questions
The scapular muscles are the muscles that move the scapula (shoulder blade), the bone that sits above the rib cage in the upper back.
The scapular muscles are important for completing daily movements, such as raising your arms over your head. Studying these muscles can help improve shoulder mobility, reduce injury risk, and build a strong upper body.
Some exercises to strengthen the scapular muscles include push-ups, reach and row, and face pulls. These exercises can help improve shoulder health, increase muscle-building potential, and create a stronger upper body.
To study the scapular muscles effectively, it is recommended to understand the anatomy and move and mimic the actions of the muscles you are learning. Additionally, incorporating specific exercises that target the scapular muscles can help strengthen and stabilize this area.
