Abstract
[Purpose] In this study we investigated the Alberta Infant Motor Scale (AIMS), focusing on the bias of the percentile ranks, in order to find out if it is possible to utilize it for Japanese infants. [Subjects] The 73 subjects, for whom we received parental consent, were mostly attending 5 nurseries. [Methods] Physical therapists translated the AIMS text and assessed the subjects following the guidelines. [Results] Among the 73 subjects, 8 were below the 5% level, 4 were in the 5-10% rank, 10 were in the 10-25% rank, 14 were in the 25-50% rank, 10 were in the 50-75% rank, 3 were in the 75-90% rank, and 24 were over the 90% level. Furthermore, when the subjects were limited to those less than 1 year of age, the results could not be said not to be a significant fit (p=0.422), and the fitness was not bad. [Conclusion] In the AIMS percentile ranks of motor development of Japanese infants, a tendency to show low values was shown.
