What distinguishes thoracic kyphosis in posture?

Thoracic kyphosis is characterized by an exaggerated curvature of the spine in the thoracic region, which leads to a hunched posture. This posture typically presents as an arched back, where the upper body leans forward and the shoulders are rounded. This bending forward is often a result of immobility, muscle weakness, or postural habits that develop over time.

In contrast, a swaying back involves lumbar lordosis, which is a different postural issue where the lower back curves excessively inward, often leading to an arch rather than a hunch. Sitting upright with shoulders back and a properly aligned spine with the head up reflect healthy postural alignment, which is the opposite of what is observed in thoracic kyphosis. Understanding these distinctions is important for recognizing postural abnormalities and addressing them accordingly in training and rehabilitation contexts.