Desenvolvimento motor de crianças prematuras e a termo: uso da Alberta Infant Motor Scale Desarrollo motor de niños prematuros y a término: uso de la Alberta Infant Motor Scale Motor development of preterm and term infants: using the Alberta Infant Motor Scale

OBJETIVOS: Comparar o desenvolvimento motor de crianças nascidas pré-termo e a termo aos quatro e seis meses de idade, aplicando a Alberta Infant Motor Scale-AIMS na versão brasileira. MÉTODOS: Estudo longitudinal, comparativo, realizado em Fortaleza-Ceará, entre novembro/ 2009 e maio/2010. amostragem por conveniência, foi constituída por 24 crianças pré-termo e 24 a termo. RESULTADOS: Nas crianças de quatro meses, verificou-se diferença estatisticamente significante na posição em pé (p=0,014) e, nas de seis meses, em todas as posições (prono, supina, sentada, em pé) e escores totais. Quanto ao percentil, aos quatro e seis meses, respectivamente, 37,5% das crianças pré-termo mostraram desempenho excelente e 54,2%, normais. CONCLUSÃO: A análise estatística do desempenho motor grosso entre os grupos de crianças estudadas mostrou diferenças no desenvolvimento e evolução dos percentis da AIMS.<br>OBJETIVOS: Comparar el desarrollo motor de niños nacidos pretérmino y a término a los cuatro y seis meses de edad, aplicando la Alberta Infant Motor Scale-AIMS en la versión brasileña. MÉTODOS: Estudio longitudinal, comparativo, realizado en Fortaleza-Ceará, entre noviembre/2009 y mayo/2010. La muestra por conveniencia, estuvo constituída por 24 niños pretérmino y 24 a término. RESULTADOS: En los niños de cuatro meses, se verificó una diferencia estadísticamente significativa en la posición podálica (p=0,014) y, en las de seis meses, en todas las posiciones (prona, supina, sentada, podálica) y scores totales. En cuanto al percentil, a los cuatro y seis meses, respectivamente, el 37,5% de los niños pretérmino mostraron desempeño excelente y el 54,2%, normales. CONCLUSIÓN: El análisis estadístico del desempeño motor grueso entre los grupos de niños estudiados mostró diferencias en el desarrollo y evolución de los percentiles de la AIMS.<br>OBJECTIVES: To compare the motor development of infants born preterm and term at four and six months of age, applying the Alberta Infant Motor Scale AIMS-Brazilian version. METHODS: Longitudinal, comparative study, conducted in Fortaleza, Ceara, between November/2009 and May/2010. A convenience sample was used, consisting of 24 preterm and 24 term infants. RESULTS: In children aged four months, there was a statistically significant difference in the standing position (p = 0.014) and in six months in all positions (prone, supine, sitting, standing) and total scores. In terms of the percentile, at four and six months respectively, 37.5% of preterm infants showed excellent performance and 54.2%, normal performance. CONCLUSION: Statistical analysis of gross motor performance between groups of children studied showed differences in the development and evolution of the percentiles of AIMS

Why rankings of biomedical image analysis competitions should be interpreted with care

International challenges have become the standard for validation of biomedical image analysis methods. Given their scientific impact, it is surprising that a critical analysis of common practices related to the organization of challenges has not yet been performed. In this paper, we present a comprehensive analysis of biomedical image analysis challenges conducted up to now. We demonstrate the importance of challenges and show that the lack of quality control has critical consequences. First, reproducibility and interpretation of the results is often hampered as only a fraction of relevant information is typically provided. Second, the rank of an algorithm is generally not robust to a number of variables such as the test data used for validation, the ranking scheme applied and the observers that make the reference annotations. To overcome these problems, we recommend best practice guidelines and define open research questions to be addressed in the future