Final answer:
Tight hip flexors can result in lordosis, which is an excessive anterior curvature of the lumbar spine, also known as swayback.
Step-by-step explanation:
If an individual has tight hip flexors, the condition that can occur in the lumbar spine is lordosis. Lordosis, also known as swayback, is an excessive anterior curvature of the lumbar region. Tight hip flexors can contribute to this condition by causing an anterior tilt of the pelvis, which may increase the curvature of the lower back.
This increased curvature leads to a pronounced lumbar curve that is recognizable when viewed from the side. It is important to note that lordosis can also be associated with other factors, such as obesity or pregnancy, due to the accumulation of body weight in the abdominal region, which can result in an anterior shift in the line of gravity of the body.