What is one of the key indicators a physical education teacher would look for to identify potential scoliosis in a student?

Scoliosis is an abnormal lateral (sideways) curvature of the spine. A key indicator that a physical education teacher would look for is one shoulder or hip appearing higher than the other. This asymmetry is one of the most visible signs of scoliosis and can be observed during a simple postural screening, such as the Adam's forward bend test, where the student bends forward at the waist while the teacher observes the back from behind.

Other signs of scoliosis include:

• Uneven shoulder blades (one more prominent than the other)
• An uneven waistline
• The body leaning to one side
• A visible rib hump on one side when bending forward

The other options describe different postural conditions:

• A rounded, hunchback appearance of the upper back is characteristic of kyphosis (excessive outward curvature of the thoracic spine), not scoliosis.
• A collapsed arch in the foot describes flat feet (pes planus), which is a foot condition, not a spinal condition.
• An inward curvature of the lower back describes lordosis (excessive inward curvature of the lumbar spine), not the lateral deviation seen in scoliosis.