Answer:
The correct answer is:
1) Lordosis
Explanation:
When the spine curves inward at the low back, it is known as lordosis. Lordosis is a postural deviation characterized by an excessive inward curvature of the spine, specifically in the lumbar region (lower back). This can result in an exaggerated arch in the lower back, causing the buttocks to stick out and the abdomen to protrude forward.
This deviation is commonly referred to as "swayback" or "hyperlordosis." It can occur due to various factors such as poor posture, muscle imbalances, obesity, pregnancy, or certain medical conditions.
It is important to note that while lordosis refers to the inward curvature of the lower back, kyphosis refers to an excessive outward curvature of the upper back, often causing a rounded or hunched appearance. Scoliosis, on the other hand, refers to an abnormal sideways curvature of the spine, while flatback refers to a reduction or loss of the natural inward curvature of the low back.
Understanding these different postural deviations can help in identifying and addressing any related concerns or discomfort.
