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Objectif: L’objectif de cette etude est d’analyser l’effet des interactions entre l’origine ethnique et le morphotype sur la performance athletique.Methodologie: Elle a porte sur 661 filles et 1816 garcons âges de 17 a 26 ans. Un recueil de donnees concernant l’appartenance ethnique a ete effectue. Le morphotype a ete identifie a travers le somatotype de chaque sujet selon la methode anthropometrique de Heath et Carter (1990). Concernant la performance athletique, les sujets ont ete soumis a l’epreuve d’endurance, de course de vitesse et de lancer de poids. Apres une repartition des sujets en tenant compte du somatotype et de l’appartenance ethnique, les 15 groupes constitues ont ete compares concernant les scores aux differentes epreuves a travers l’analyse de variance (ANOVA).Resultats: La comparaison des scores moyens realises par chaque groupe met en evidence l’existence d'un effet interactif de l’origine ethnique et du morphotype sur la performance athletique (P<0,05). Chez les garcons les differences significatives s’observent aux epreuves d’endurance (p<0,001) et au lancer de poids (p<0,001). Les filles presentent des ecarts significatifs aux epreuves de vitesse (p<0,001) et de lancer de poids (p=0,003).Conclusion: La performance athletique apparait dans cette etude comme la resultante d'une appartenance ethnique et d’un morphotype specifique favorisant ou limitant la realisation de bonnes performances chez ces jeunes ivoiriens selon la discipline.Mots cles: Origine ethnique, morphotype, endurance, vitesse, lancer de poidsEnglish Title: Analysis of interactive effect of ethnic origin and morphotype on athletic performance in young from Cote d’IvoireEnglish AbstractObjective: The aim of this study is to analyze the effect of interactions between ethnicity and morphotype on athletic performance.Methodology: It covered 661 girls and 1816 boys aged 17 to 26 years. A collection of data on ethnicity was carried out. The morphotype was identified through the somatotype of each subject according to the anthropometric method of HEATH and CARTER (1990). Concerning the athletic performance, the subjects were subjected to the test of endurance, racing speed and launch of weight. After a distribution of subjects taking into account somatotype and ethnicity, the 15 constituted groups were compared for scores in the various tests through the analysis of variance (ANOVA).Results: Comparison of mean scores achieved by each group revealed an interactive effect of ethnicity and morphotype on athletic performance (P <0.05). In boys, significant differences were observed in endurance tests (p <0.001) and weight throw (p <0.001). Girls show significant differences in speed (p <0.001) and weight throw (p = 0.003).Conclusion: Athletic performance appears in this study as the result of an ethnic belonging and a specific morphotype favoring or limiting the achievement of good performances in these Ivorian youth according to the discipline.Keywords: Ethnic Origin, morphotype, endurance, speed, strength

Analyse de l effet interactif de l origine ethnique et du morphotype sur la performance athletique chez des jeunes de Cote d Ivoire