An allometric modelling approach to identify the optimal body shape associated with, and differences between brazilian and peruvian youth motor performance

Silva, Simonete Pereira da; Bustamante, Alcibíades; Nevill, Alan; Katzmarzyk, Peter  T.; Freitas, Duarte Luís de; Prista, António; Maia, José António Ribeiro

http://hdl.handle.net/10400.13/1271

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Authors

Silva, Simonete Pereira da

Bustamante, Alcibíades

Nevill, Alan

Katzmarzyk, Peter T.

Freitas, Duarte Luís de

Prista, António

Maia, José António Ribeiro

Abstract(s)

Children fromdevelopedanddevelopingcountriesdifferintheirbodysizeandshapedueto markeddifferencesacrosstheirlifehistorycausedbysocial,economicandculturaldifferenceswhicharealsolinkedtotheirmotorperformance(MP).Weusedallometricmodelsto identifysize/shapecharacteristicsassociatedwithMPtestsbetweenBrazilianandPeruvianschoolchildren.Atotalof4,560subjects,2,385girlsand2,175boysaged9–15years werestudied.Heightandweightweremeasured;biological maturation wasestimated with thematurityoffsettechnique;MPmeasuresincludedthe12minuterun(12MR),handgrip strength(HG),standinglongjump(SLJ)andtheshuttlerunspeed(SR)tests;physicalactivity(PA)wasassessedusingtheBaeckequestionnaire.Amultiplicativeallometricmodel wasadoptedtoadjustforbodysizedifferencesacrosscountries.Reciprocalponderalindex (RPI)wasfoundtobethemostsuitablebodyshapeindicatorassociatedwiththe12MR, SLJ,HGandSRperformance.Apositivematurationoffset parameterwasalsoassociated withabetterperformanceinSLJ,HGandSRtests.Sexdifferenceswerefoundinallmotor tests.BrazilianyouthshowedbetterscoresinMPthantheirPeruvianpeers,evenwhen controlling fortheirbodysizedifferencesThecurrentstudyidentifiedthekeybodysize associatedwithfourbodymass-dependentMPtests.Biological maturationandPAwere associatedwithstrengthandmotorperformance.Sexdifferenceswerefoundinallmotor tests,aswellasacrosscountriesfavoringBrazilianchildrenevenwhenaccountingfortheir bodysize/shapedifferences.

Keywords

. Faculdade de Ciências Sociais

URI

http://hdl.handle.net/10400.13/1271

Citation

Silva, S., Bustamante, A., Nevill, A., Katzmarzyk, P. T., Freitas, D., Prista, A., & Maia, J. (2016). An Allometric Modelling Approach to Identify the Optimal Body Shape Associated with, and Differences between Brazilian and Peruvian Youth Motor Performance. PloS one, 11(3):e0149493.