What accompanies an increase in the normal thoracic curve in hyperkyphosis?

An increase in the normal thoracic curve seen in hyperkyphosis is typically accompanied by protracted scapulae and a head-forward posture. This correlation arises because hyperkyphosis, which is characterized by an excessive curvature of the thoracic spine, often results in changes in the positioning of the shoulder girdle and head.

When the thoracic spine curves excessively, it causes the scapulae to move forward (protract), pulling the shoulders inward. This shoulder position can lead to the forward head posture, where the head is positioned in front of the shoulders instead of being directly over them. These postural changes are common compensatory mechanisms as the body tries to maintain balance and alignment despite the altered spine curvature.

Other options may involve separate issues; for instance, increased lordosis in the lumbar region might occur as a compensatory response but does not directly accompany hyperkyphosis. Similarly, reduced shoulder flexibility and strengthening of abdominal muscles do not directly relate to the curvature itself but rather to the compensatory or corrective measures that could be considered in response to hyperkyphosis.