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Tight latissimus dorsi has been shown to be a contributor to chronic shoulder pain and chronic back pain. [10] Because the latissimus dorsi connects the spine to the humerus, tightness in this muscle can manifest as either sub-optimal glenohumeral joint (shoulder) function which leads to chronic pain or tendinitis in the tendinous fasciae ...
The erector spinae (/ ɪ ˈ r ɛ k t ər ˈ s p aɪ n i / irr-EK-tər SPY-nee) [1] or spinal erectors is a set of muscles that straighten and rotate the back.The spinal erectors work together with the glutes (gluteus maximus, gluteus medius and gluteus minimus) to maintain stable posture standing or sitting.
The back muscles can usually heal themselves within a couple of weeks, but the pain can be intense and debilitating. Other common sources of back pain include disc problems, such as degenerative disc disease or a lumbar disc herniation , many types of fractures, such as spondylolisthesis or an osteoporotic fracture, or osteoarthritis .
The latissimus dorsi, to use the muscles' proper name, are the wide, fan-shaped muscles that make up the majority of your mid-back. The lats are especially consequential for several reasons.
The thoracolumbar fascia is thought to be involved in load transfer between the trunk and limb (it is tensioned by the action of the latissimus dorsi muscle, gluteus maximus muscle, and the hamstring muscles), and lifting. [1]: 814–815 It is endowed with nociceptive receptors, and may be involved in some forms of back pain. [1]: 814–815
The axillary arch is an arch-shaped anatomical variant of the latissimus dorsi muscle of the human back. [6] [7] Its shape varies, but its defining characteristics are its origin from the latissimus dorsi muscle, its insertion close to or on the upper anterior part of the humerus, and that it crosses the neurovascular bundle associated with the axillary nerve from dorsomedial to ventrolateral. [6]
Spinalis dorsi, the medial continuation of the sacrospinalis, is scarcely separable as a distinct muscle.It is situated at the medial side of the longissimus dorsi, and is intimately blended with it; it arises by three or four tendons from the spinous processes of the first two lumbar and the last two thoracic vertebrae: these, uniting, form a small muscle which is inserted by separate tendons ...
Muscles which flex the elbow joint such as the biceps brachii muscle, brachialis muscles and brachioradialis muscle are active to improve leverage. [1] As the biceps originate on the scapula unlike the other two which originate on the humerus, the biceps are inclined to serve a role as a dynamic stabilizer, much as the hamstrings would during a ...