What is a typical normal range for lumbar flexion?

What is a typical normal range for lumbar flexion?

• A. 70–90 degrees
• B. 10–20 degrees
• C. Approximately 40–60 degrees
• D. 90–110 degrees

Answer: (C)

Lumbar flexion refers to how much the lower spine can bend forward. In a healthy person, the typical amount is about 40–60 degrees. This reflects the motion available specifically at the lumbar segments when the pelvis is stabilized. When you bend forward, the hips often contribute substantial motion too, so the total trunk flexion can be larger, but the lumbar portion alone is about 40–60 degrees. The other ranges are either too small or too large to represent normal lumbar motion, so the 40–60 degree range is the best match.

Lumbar flexion refers to how much the lower spine can bend forward. In a healthy person, the typical amount is about 40–60 degrees. This reflects the motion available specifically at the lumbar segments when the pelvis is stabilized. When you bend forward, the hips often contribute substantial motion too, so the total trunk flexion can be larger, but the lumbar portion alone is about 40–60 degrees. The other ranges are either too small or too large to represent normal lumbar motion, so the 40–60 degree range is the best match.