The trapezius, trapezoid, or traps muscle is a muscle in the upper back. It stabilizes the shoulders and enables the neck to move. Certain stretches can help ease pain and keep movement flexible. The ...

What Is the Trapezius Muscle? Trapezius muscles are large, paired, triangular muscles in the back of your neck and upper back. They extend down your back, but they’re mostly involved in the movements ...

Ask someone in the gym to point to their trapezius muscles, and they’ll probably gesture toward the small mounds nestled between their neck and shoulders—but that’s really just the tip of the iceberg.