Michael Romann

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Relative Age Effects (RAEs) refer to the selection and performance differentials between children and youth who are categorized in annual-age groups. In the context of Swiss 60m athletic sprinting, 7761 male athletes aged 8 - 15 years were analysed, with this study examining whether: (i) RAE prevalence changed across annual age groups and according to(More)
BACKGROUND The second-to-fourth digit-length ratio (2D:4D) may be a correlate of prenatal sex steroids, and it has been linked to sporting prowess. The aim of the study was to validate dual-energy X-ray-absorptiometry (DXA) as a technique to assess 2D:4D in soccer players under 15 years of age (U-15). METHODS Paired X-ray and DXA scans of the left hands(More)
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