Which starting lumbar traction force is recommended?

• A. 90–120 lb
• B. 10–20 lb
• C. 30–45 lb
• D. 60–80 lb

Answer: (C)

Starting lumbar traction uses a conservative load to balance effectiveness with safety. For most adults, a starting force of about 30–45 pounds provides enough upward pull to create some separation of the lumbar joints and open space around the nerve roots, while staying well within a tolerable range to avoid muscle guarding or irritation. This amount often corresponds to roughly a quarter of body weight, making it a practical, individualized starting point.

Choosing a higher initial force, such as 60–80 pounds or more, can be too aggressive for many patients and may worsen uncomfortable symptoms or provoke guarding. A very low start, like 10–20 pounds, is typically insufficient to produce meaningful mechanical effects in the lumbar spine for most individuals. Therefore, 30–45 pounds is the most appropriate starting range to begin lumbar traction.