Diurnal preference and sports performance : a subjective and genetic view
Master Thesis
2011
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University of Cape Town
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[T]he purpose of this study was to describe the distribution of morning- or evening-preferring individuals (measured using the Horne-Östberg morningness-eveningness personality questionnaire) and PER3 VNTR polymorphism (from genomic DNA products extracted from human buccal cell samples amplified and digested with NcoI) within male Caucasian, trained cyclists (CYC, n=138), Ironman triathletes (IM, n=301) and an active, but non-competitive control population of Caucasian males (CON, n=120). In addition, performance was assessed in trained cyclists strongly preferring mornings or evenings at various times of day.
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Kunorozva, L. 2011. Diurnal preference and sports performance : a subjective and genetic view. University of Cape Town.