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Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
Department of Translational Medicine, Lund University, Lund, Sweden & Department of Medical Imaging and Physiology, Skåne University Hospital, Malmö, Sweden.
Department of Translational Medicine, Lund University, Lund, Sweden & Department of Medical Imaging and Physiology, Skåne University Hospital, Malmö, Sweden.
Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences and Orthopaedics, Lund University, Skåne University Hospital, Malmö, Sweden.ORCID iD: 0000-0002-0616-5928
Department of Sport Sciences, Malmö University, Malmö, Sweden.
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2020 (English)In: Sports, E-ISSN 2075-4663, Vol. 8, no 1Article in journal (Refereed) Published
Abstract [en]

The relationship between birth quarter distribution and physiological characteristics related to athletic skills, in adolescent sport academy students has not been fully investigated. In a cross-sectional study, we recruited 86 boys and 52 girls aged 12-14 years during their first term at a sport academy school. We measured body size, cardiac size, pulmonary function, body composition, lower body power, cardiorespiratory fitness parameters, and running endurance by standard methods and analyzed these estimates in relation to birth quarter by ANOVA. Birth quarter distribution in our cohort was compared with birth quarter distribution in the same ages in the whole of Sweden and analyzed by logistic regression. The academy had an overrepresentation of students born in the first quartile of the year compared to those born in the last quartile (odds ratio 2.3 (95% CI: 1.1-4.7)). When comparing the physiological characteristics between birth quarters, uniformity is prominent since out of 26 performed physiological and anthropometric tests only four showed statistically significant group differences. We thus believe that the selection process to the sport academy favours athletes with higher chronological age, i.e., a so-called relative age effect is present. © 2020 MDPI (Basel, Switzerland).

Place, publisher, year, edition, pages
Basel: MDPI, 2020. Vol. 8, no 1
Keywords [en]
exercise physiology, fitness testing, physical maturation, relative age effect, talent selection
National Category
Physiology
Identifiers
URN: urn:nbn:se:hh:diva-41601DOI: 10.3390/sports8010005PubMedID: 31936102OAI: oai:DiVA.org:hh-41601DiVA, id: diva2:1391412
Projects
MUSSE
Funder
Swedish National Centre for Research in Sports, 2018-0008
Note

Other funders: The Swedish Heart and Lung Association (20120269), Lund University Grants and Halmstad University (46118, 98913, 819961).

Available from: 2020-02-04 Created: 2020-02-04 Last updated: 2020-02-05Bibliographically approved

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Olsson, M. CharlotteMalmborg, Julia

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Karlsson, Magnus K.Olsson, M. CharlotteMalmborg, JuliaDencker, Magnus
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