To examine inter-rater reliability of the Korean version Gross Motor Function Measure (K-GMFM-88) and the Gross Motor Performance Measure (GMPM) based on the video clips.
We considered a sample of 39 children (28 boys and 11 girls; the mean age=3.50±1.23 years) with cerebral palsy (CP). Two pediatric physical therapists assessed the children based on video recordings.
For the K-GMFM-88, the intraclass correlation coefficient (ICC3, 1) ranged from .978 to .995, and Spearman's correlation coefficient ranged from .916 to .997. For the GMPM, ICC3, 1 ranged from .863 to .929, and Spearman's correlation coefficient ranged from .812 to .885. With the gross motor function classification system classified according to the functional level (GMFCS I-II vs. III-V), the ICCs were .982 and .994 for the K-GMFM-88 total score and .815 and .913 for the GMPM total score. There were good or high correlations between the subscales of the two measures (r=.762-.884).
The K-GMFM-88 and GMPM are reliable tools for assessing the motor function of children with CP. These two methods are highly correlated, which adds more reliability on them. Thus, it is advisable to use K-GMFM-88 and GMPM for children with CP to assess gross motor function.
Citations
Objective: We performed to obtain the normal values of Gross Motor Function Measure (GMFM) in normally developed children. We designed this study to inform the degree of gross motor functional disability or delay in children with cerebral palsy, comparing with score values of GMFM in normal children.
Method: One hundred-sixteen normally developed children who were in the age of 12 to 47 months were recruited. Their GMFM tests were performed by a pediatric physical therapist. They were grouped by age of 6 months and the scores were compared with all of each groups.
Results: The GMFM scores in normal children increased with ages. The rates of increment in scores were fast till 35 months of age and inter-individual differences of GMFM scores were greater in younger age groups (less than 36 months of age) than older groups. Even the means of GMFM scores were higher in the girls than boys, the differences between sexes were insignificant statistically.
Conclusion: Norms of GMFM obtained in normally developed children who were in the age of 12 to 47 months. It would be helpful to assess the degree of motor functional disabilities or delay in children with physical disabilities. (J Korean Acad Rehab Med 2002; 26: 398-402)
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