title: A new dimension to relative age effects: constant year effects in German youth handball.
abstract: In this manuscript we argue for a broader use of the term 'relative age effect' due to the influence of varying development policies on the development of sport expertise. Two studies are presented on basis of data from Schorer, et al. [1]. The first showed clear 'constant year effects' in the German handball talent development system. A shift in year groupings for the female athletes resulted in a clear shift of birth year patterns. In the second study we investigated whether the constant year effect in the national talent development system carried over to professional handball. No patterns were observable. Together both studies show that a differentiation of varying effects that often happen simultaneously is necessary to understand the secondary mechanisms behind the development of sport expertise.
authors: Institute of Sport and Exercise Sciences, University of Muenster, Münster, Institute for Sport Science, University of Oldenburg, Oldenburg, Germany. joerg@schorer.eu
authors: Jörg
authors: J
authors: Schorer
authors: Nick
authors: N
authors: Wattie
authors: Joseph R
authors: JR
authors: Baker
mesh_terms: D000367:Age Factors; D001076:Aptitude; D054874:Athletic Performance; D002648:Child; D005260:Female; D005858:Germany; D006801:Humans; D038622:Internationality; D008297:Male; D013177:Sports
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