In upper crossed syndrome, which muscle is facilitated?

In upper crossed syndrome, which muscle is facilitated?

• A. Deep cervical flexors
• B. SCM
• C. Levator scapulae
• D. Pectoralis

Answer: (B)

In upper crossed syndrome, the pattern of tightness and weakness creates forward head posture and altered neck mechanics. The sternocleidomastoid becomes facilitated because the head is held forward, shortening this muscle and causing it to be chronically overactive as it works to lift and stabilize the head against gravity. While other muscles like the levator scapulae or pectoralis may also be tight, the SCM is the classic cervical muscle that shows facilitation in this pattern, whereas deep cervical flexors are typically inhibited rather than overactive.

In upper crossed syndrome, the pattern of tightness and weakness creates forward head posture and altered neck mechanics. The sternocleidomastoid becomes facilitated because the head is held forward, shortening this muscle and causing it to be chronically overactive as it works to lift and stabilize the head against gravity. While other muscles like the levator scapulae or pectoralis may also be tight, the SCM is the classic cervical muscle that shows facilitation in this pattern, whereas deep cervical flexors are typically inhibited rather than overactive.