{"id":3477,"date":"2024-06-17T14:31:20","date_gmt":"2024-06-17T14:31:20","guid":{"rendered":"https:\/\/integrativa.pt\/?p=3477"},"modified":"2026-01-31T12:27:39","modified_gmt":"2026-01-31T12:27:39","slug":"the-anatomical-relationship-between-the-shoulder-and-the-diaphragm-in-the-osteopathic-approach","status":"publish","type":"post","link":"https:\/\/integrativa.pt\/en\/a-relacao-anatomica-entre-o-ombro-e-o-diafragma-na-abordagem-da-osteopatia\/","title":{"rendered":"The anatomical relationship between the shoulder and the diaphragm in the osteopathic approach"},"content":{"rendered":"
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Shoulder pain is a frequent complaint in clinical practice and, in some cases, can be associated with alterations in other body structures, including the diaphragm and breathing patterns. Scientific literature has explored this relationship mainly in the context of musculoskeletal pain, motor control and respiratory physiotherapy. The available data suggests that, in certain clinical contexts, changes in breathing patterns and diaphragm function can coexist with a greater load on the cervical and scapular musculature.<\/p>\n

Understanding this relationship makes it possible to frame shoulder pain in a more comprehensive way, integrating muscular, respiratory and neurological factors into clinical reasoning, without assuming a direct causal relationship in all cases.<\/p>\n

Diaphragm and accessory respiratory muscles<\/h4>\n

The diaphragm is the main muscle in breathing and plays a central role in efficient ventilation. It is located between the thorax and abdomen and, during inspiration, it moves downwards, allowing air to enter the lungs. In addition to its respiratory function, it is related to posture, trunk stability and the management of the body's internal pressures.<\/p>\n

Under normal conditions, their movement tends to be broad and coordinated, favouring an efficient breathing pattern. However, factors such as prolonged stress, pain, traumatic experiences or periods of greater emotional demand can modify the respiratory rhythm, promoting more superficial and accelerated breathing. When this pattern is maintained over time, respiratory work tends to depend more on the accessory respiratory muscles, located mainly in the cervical region and upper torso.<\/p>\n

Involvement of the neck and shoulder muscles<\/h4>\n

In a predominantly thoracic or superficial breathing pattern, muscles such as the scalenes, the sternocleidomastoid and other cervical structures tend to be recruited more frequently. These muscles are not prepared to take on the main function of breathing on a sustained basis.<\/p>\n

This increased recruitment can be associated with greater cervical and scapular tension, contributing to neck discomfort, a feeling of heaviness in the shoulders, headaches and, in some cases, symptoms radiating to the upper limb, such as tingling or a feeling of pressure.<\/p>\n

The phrenic nerve and its clinical relevance in shoulder pain<\/h4>\n

The phrenic nerve is the main motor nerve of the diaphragm and originates from the cervical nerve roots C3, C4 and C5. Its function is directly related to respiratory mechanics, allowing the diaphragm to contract during inspiration. Alterations involving these nerve roots, the mobility of the cervical spine or adjacent soft tissues can influence the efficient activation of the diaphragm and the breathing pattern.<\/p>\n

At the same time, the cutaneous sensitivity of the top of the shoulder, including the upper region of the trapezius and the area close to the acromion, is mainly associated with the C3 and C4 nerve roots. This innervation is mainly provided by the supra-clavicular nerves, sensory branches of the superficial cervical plexus, which are distributed throughout the lateral neck, clavicle and top of the shoulder.<\/p>\n

This anatomical overlap helps to understand why, in some cases, functional alterations at the level of the upper cervical spine can be manifested simultaneously by changes in the breathing pattern and tenderness, discomfort or diffuse pain at the top of the shoulder, even in the absence of obvious local structural alterations.<\/p>\n

From a clinical point of view, this sharing of nerve origin is relevant. The same cervical roots that contribute to the innervation of the diaphragm are involved in the sensitivity of the top of the shoulder. Thus, functional alterations at the level of C3-C4 can manifest as:<\/p>\n