Signs & Symptoms of a Tight Trapezius Muscle

The trapezius is a large muscle located on the back of your neck and shoulders. It extends from the upper neck down through the vertebrae in the middle of your back. This muscle moves the shoulder blades and supports the arms. Lack of flexibility in the traps will cause underlying problems in other areas. The areas most effected by trapezius tightness are the arms, shoulders and lower spine.

Woman getting a neck massage (Image: 4774344sean/iStock/Getty Images)

Poor Postural Alignment

Tight traps prevent your shoulders from being in their proper position. Your shoulders should be situated about even with your ears, not in front of your ears. Because trapezius tightness makes it difficult to bring your shoulder blades close to your spine, it pushes the shoulders and upper spine excessively forward. Repetitive poor posture can lead to kyphosis of the spine, an unnatural forward curvature of the upper spine. This excessive spinal curvature is extremely hard to unlearn.

Upper Back Pain

Another symptom of trapezius tightness is radiating upper back pain. When a muscle area is tight, it becomes very constricted. This constriction makes it hard for the upper back to provide optimal support. Lack of muscle support from the traps could lead to discomfort that runs down through the length of the thoracic spine or up the neck.

Lower Back Fatigue

Tightness keeps the trapezius from fulfilling its role as a major stabilizer in muscle movements. Head turns and pulling motions require high amounts of trapezius stability. Because tightness in the traps seriously hinders its ability to move and contract, the lower spine has to pick up the slack during upper body activities. The lumbar or lower spine is mostly designed for basic stabilization, not for heavy muscle recruitment. Overexertion of the spine leads to fatigue and possibly injury.

Lack of Arm and Shoulder Mobility

One of the major functions of the trapezius is arm support. Lack of trap flexibility impedes support of both of your arms, which threatens support of your shoulders as well. With tight traps, the limited support in the arms and shoulders inhibits mobility in both areas, making side-to-side and overhead arm maneuvers difficult.

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