Gross Motor Functional Measure (GMFM)-88 and GMFM-66

What is it?

The Gross Motor Functional Measure (GMFM) is a clinical tool used to evaluate changes in gross motor function in children with cerebral palsy (CP). There are 66 items in the GMFM-66 and 88 in the GMFM-88 and the items range from activities lying down to running and jumping skills. Clinicians score each item on a scale of 0 to 3, 0 being does not initiate and 3 being completes. There is also an option to score a 9 meaning not tested. The GMFM-66 has to be scored by the Gross Motor Ability Estimator (GMAE) software whereas clinicians can score the GMFM-88 themselves. For more information on this measure, click here. For more information on paediatric outcome measures and resources, visit

Our Thoughts:

This is a great resource for paediatric physiotherapists to measure changes in gross motor function in children with CP. This outcome measure is well recognized in the world of paediatrics and is widely used amongst clinicians. The variety of items measured allows this measure to be used for a wide range of children with varying CP presentations. Click below for a link to the GMFM–88 and 66 scoresheet.



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