What is a common cause of a curved spine during postural assessment?

A common cause of a curved spine during postural assessment pertains significantly to the condition of the core muscles, particularly the rectus abdominis. When the rectus abdominis and other core muscles are underdeveloped, they can fail to provide the necessary support and stability to the spine. This lack of support can lead to postural imbalances, resulting in a curved or misaligned spine.

In contrast, tight hamstrings primarily affect the pelvis and lower back, leading to different postural issues rather than a direct curving of the spine. Weak pectoral muscles are more related to upper body posture, and while strong erector spinae muscles can support an upright posture, they can sometimes contribute to an imbalance if the core is not adequately engaged. Therefore, focusing on developing core strength, which includes the rectus abdominis, is crucial for maintaining healthy spinal alignment and preventing curvature during postural assessments.