Which of the following is NOT one of the four main postural types assessed in Stott Pilates?

The four main postural types assessed in Stott Pilates include Kyphotic-Lordotic, Flat Back, and Sway Back. Each of these types has specific characteristics related to spinal alignment and postural habits that can significantly influence a person's movement patterns and overall body mechanics.

Kyphotic-Lordotic posture is characterized by an exaggerated curve in both the thoracic and lumbar regions of the spine, often leading to a forward head and rounded shoulders. Flat Back posture presents with a reduction of the normal curves of the spine, creating a "flat" appearance. Sway Back posture is identified by an excessive curvature in the lumbar spine, often associated with hips that are pushed forward and an anteriorly tilted pelvis.

Rounded Shoulders, while a common postural issue that can be associated with other postural types, is not classified as one of the main types because it is more of a specific muscular imbalance rather than a full postural type. It is often a result of habits or muscular imbalances rather than a standalone structural posture. Thus, it is not included as one of the primary categories used in Stott Pilates assessments.