The relationship between upper trapezius muscle length and upper quadrant neural tissue extensibility

Area of Science:

• Anatomy
• Neuroscience
• Musculoskeletal System

Background:

• The upper trapezius muscle and brachial plexus nerves share anatomical proximity.
• Neural tissue extensibility may affect musculoskeletal measurements.

Purpose of the Study:

• To investigate if upper quadrant neural tissue extensibility influences upper trapezius muscle length measurements.
• To determine the relationship between neural extensibility and trapezius muscle length.

Main Methods:

• Two groups of healthy subjects were assessed based on upper quadrant neural extensibility.
• Neural extensibility was measured using the upper limb tension test.
• Upper trapezius muscle length was measured in both groups.

Main Results:

• Subjects with decreased neural extensibility exhibited significantly shorter upper trapezius muscle length.
• A negative correlation was observed between neural extensibility and trapezius muscle length.

Conclusions:

• Clinicians should evaluate neural tissue extensibility before interpreting upper trapezius muscle length test results.
• Assessing neural extensibility is crucial for accurate musculoskeletal assessments of the upper trapezius.