Reliability of the Modified-Modified Schober Method of Measuring Lumbar Range of Motion

Date of Award

Summer 8-1997

Document Type


Degree Name

Master of Science (MS)


Rehabilitation Sciences


Physical Therapy

Committee Director

John L. Echternach

Committee Member

Martha L. Walker

Committee Member

Gail Grisetti

Call Number for Print

Special Collections LD4331.P45 M37


The purpose of this study was to determine the reliability of the Modified-modified Schober (MMS) method of measuring lumbar flexion and extension on subjects with low back pain. Thirty patients (19 females, 11 males) between the ages of 18 to 61 years (mean=40.0, SD=l 1.7) were measured by two physical therapists who each had six years of orthopedic experience.

Each subject was evaluated twice, in random order, by each tester using the MMS method. Trials 1 and 2 were used to calculate intratester reliability for each tester and intertester reliability was calculated between the two testers. Intraclass correlation coefficients (ICCs) for intratester reliability during flexion were .98 and .93 for tester 1 and 2, respectively. ICCs for intratester reliability during extension were .96 and .91 for tester 1 and 2, respectively. Intertester reliability was .93 and .83 for lumbar flexion and extension, respectively.

The MMS method appears to be a reliable method of measuring lumbar flexion and extension in patients with low back pain.


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