%0 Journal Article
%T Validaci¨®n por hidrodensitometr¨ªa de ecuaciones de pliegues cut¨¢neos utilizadas para estimar la composici¨®n corporal en mujeres Validation by hydrodensitometry of skinfold thickness equations used for female body composition assessment
%A Juan Carlos Aristiz¨¢bal
%A Mar¨ªa Teresa Restrepo
%A Amalia L¨®pez
%J Biom¨¦dica
%D 2008
%I Instituto Nacional de Salud
%X Introducci¨®n. Las ecuaciones de pliegues cut¨¢neos son ampliamente utilizadas para estimar la composici¨®n corporal; sin embargo, en nuestra poblaci¨®n no se han validado contra un m¨¦todo de referencia. Objetivo. Validar por hidrodensitometr¨ªa las ecuaciones de Durning/Womersley, Jackson/Pollock y Ram¨ªrez/Torun en mujeres de 18 a 40 a os. Materiales y m¨¦todos. Se compar¨® el porcentaje de grasa de 52 mujeres obtenido por hidrodensitometr¨ªa, medici¨®n simult¨¢nea del peso bajo el agua (b¨¢scula Chatillon) y del volumen pulmonar residual (espir¨®metro VMAX 22 Sensormedics), con el estimado por las ecuaciones de pliegues cut¨¢neos (calibrador Harpenden) de Durning/Womersley, Jackson/Pollock y Ram¨ªrez/Torun. Para el an¨¢lisis estad¨ªstico se utilizaron la t de Student pareada, los coeficientes de correlaci¨®n de Pearson e intraclase, y el m¨¦todo de Bland-Altman. Resultados. El porcentaje de grasa obtenido por hidrodensitometr¨ªa (29,6¡À5,8) present¨® diferencias (p Conclusi¨®n. Las ecuaciones de pliegues cut¨¢neos presentaron pobre validez en la predicci¨®n del porcentaje de grasa, con diferencias significativas con la hidrodensitometr¨ªa, una baja concordancia y unos amplios l¨ªmites de ¨¦sta, lo cual, sugiere que sus resultados no son comparables ni intercambiables con este m¨¦todo. Introduction. Skinfold thickness equations are widely used for body composition assessment. However the equations have not been validated in Colombia with a reference method. Objective. The skinfold thickness equations of Durning/Womersley, Jackson/Pollock and Ram¨ªrez/Torun were validated by hydrodensitometry in female from 18 to 40 years old. Materials and methods. The percentage of body fat was compared among 52 women, using underwater weighing (Chatillon scale) with simultaneous measured of residual lung volume (VMAX 22 Sensormedics spirometer) and skinfold thickness (Harpenden caliper) equations of Durning/Womersley, Jackson/Pollock and Ram¨ªrez/Torun. The statistic analysis included paired t test, Pearson and intraclass correlation coefficients, and the Bland-Altman method. Results. The mean percentage of body fat by hydrodensitometry (29.6¡À5.8%) was different (p Conclusion. The skinfold thickness equations showed poor validity for body fat assessment. The equations had significant differences and lower correlation coefficients with hydrodensitometry. In addition, the equations indicated agreement with hydrodensitometry over very wide limits. The outcomes suggested that the results obtained by hydrodensitometry were neither comparable nor interchangeable with those from Durning/Womersley, Jacks
%K estudios de validaci¨®n
%K densitometr¨ªa
%K antropometr¨ªa
%K grosor de pliegues cut¨¢neos
%K composici¨®n corporal
%K ¨ªndice de masa corporal
%K mujeres
%U http://www.revistabiomedica.org/index.php/biomedica/article/view/78