What Is a Straight Leg Raise?
A straight leg raise is a physical examination test that checks how the lower back and sciatic nerve respond when a person lifts a straight leg. A clinician watches for pain, tingling, or pulling that travels along the leg. The finding can help guide further assessment of sciatica and related nerve symptoms.
Quick Facts About Straight Leg Raise
Category
Physical examination test
Used for
Checking nerve-related leg symptoms
Common confusion
Hamstring stretching
Also called
Lasègue Test, SLR Test
Often discussed with
Sciatica Treatment
Key Takeaways About Straight Leg Raise
- The leg stays straight during the movement.
- Radiating symptoms provide more information than simple muscle tightness.
- The test does not confirm a single diagnosis by itself.
How Straight Leg Raise Works
A straight leg raise starts with the person lying on their back. A clinician lifts one straight leg while the knee stays extended. The clinician observes where symptoms appear and whether the symptoms travel below the buttock or along the leg.
Related glossary terms: Lumbar Spine, Nerve Root Compression, Range Of Motion.
The movement places gentle tension on the sciatic nerve and nearby tissues. A pulling feeling in the back of the thigh may reflect muscle tightness. Pain, tingling, or numbness that follows a nerve path can point to a different concern. The result is considered with the rest of the examination, including findings from the lumbar spine and movement tests.
From the Arrowhead Clinic Chiropractor Garden City team
When we check a straight leg raise, we watch the location and quality of symptoms, not just how high the leg moves. We compare sides and consider the finding with the person’s history, strength, sensation, and other examination results.
Straight Leg Raise in Practice: A Real-World Example
A person with sciatica may report a sharp, traveling sensation when a clinician raises the straight leg. The clinician records the symptom pattern and uses it with other findings to plan the next assessment step.
Related Services
Related Terms
Lumbar Spine
The lumbar spine is the lower section of the spinal column between the rib area and…
Nerve Root Compression
Nerve Root Compression is pressure on a spinal nerve root where it leaves the spine. A…
Range Of Motion
Range Of Motion is the amount a joint can move in different directions during an activity…
Referred Pain
Referred Pain is discomfort felt in one area even though the source lies elsewhere. Shared nerve…
Arrowhead Clinic Chiropractor Garden City
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