Reliability and Validity of the Functional Movement Screen for Low Back Pain

What is it about?

The purposes of this study were to determine the reliability and validity of the FMS™ with a modified scoring system in young adults with and without LBP. The FMS™ scores were modified by assigning a zero score only when there was an increase in LBP during the FMS™, not simply for the presence of pain, as in the original FMS™ scoring system.

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Why is it important?

it is necessary to modify the original scoring system, as it would underscore severely for those participants who perform movements in proper form but have zero scores simply because they have existing LBP at baseline. In this modified scoring system, a zero score is given only when the participant reports an increase in LBP. Subsequently, when pain intensity does not change during a movement test, it indicates that the movement is performed properly, whereas when there is an increase pain from the baseline during a movement test, it is indicative of an abnormal movement pattern.