90-90 STRAIGHT

LEG RAISE TEST

​• Test positioning

The client lies supine, stabilizing both hips at 90-degrees of flexion with both hands.

The knees are bent in a relaxed position.

The therapist stands next to the client.

​• Action

The client is instructed to actively extend one knee at a time as much as possible.

​• Positive finding

If the knee is flexed greater than 20 degrees, the hamstrings are considered tight.

​• Special considerations & comments

When assessing this test, care should always be taken to be consistent with the position of the pelvis so that testing measures can be repeated with reliability.

The 90-90 Straight Leg Raise Test incorporates principles from Dr. James Cyriax’s work in orthopedic medicine and Dr. Robert Elvey’s contributions to neural tension assessment, particularly in diagnosing hamstring tightness and nerve involvement in lumbar spine disorders.