Question

A client that demonstrates upper crossed syndrome typically has weakness in which of the following muscle groups?

A) Rhomboids
B) Pectoralis major
C) Erector spinae
D) Latissimus dorsi

Answer 1

In upper crossed syndrome, the rhomboids muscle group which includes the trapezius and rhomboid major, is typically weakened, affecting the positioning of the pectoral girdle.

Step-by-step explanation:

A client demonstrating upper crossed syndrome typically has weaknesses in certain muscle groups due to imbalances between the tension of muscles and the length of their corresponding antagonists. A key feature of this syndrome is the weakness of the posterior thoracic muscles responsible for positioning the pectoral girdle. These include the trapezius, levator scapulae, rhomboid major, and rhomboid minor. Hence, among the options provided, the rhomboids are typically weakened in a client with upper crossed syndrome. When the rhomboids are weakened, they cannot adequately perform their function of moving the scapula medially, which can lead to postural imbalances and the characteristic 'crossed' pattern of this syndrome where upper body muscles demonstrate imbalanced strength and mobility.