Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Medicine and Health Sciences
Effect Of Exercise Volume On Hdl-Cholesterol: A 7-Year Case Study, David P. Swain
Effect Of Exercise Volume On Hdl-Cholesterol: A 7-Year Case Study, David P. Swain
Human Movement Studies & Special Education Faculty Publications
Introduction: While exercise is known to increase HDL-cholesterol, it is not known if larger exercise volumes produce larger increases in HDL. However, the range of exercise volumes used in most training studies is limited. This report presents a case study of a middle-aged male who engaged in large variations of exercise volume over 7 years while frequently measuring HDL. The purpose was to determine if large increases in exercise volume were associated with larger increases in HDL than previously reported.
Methods: The subject maintained detailed logs of his main form of exercise, bicycling. These logs were analyzed to determine the …
Association Between Vitamin D Status And Testosterone And Cortisol In Ice Hockey Players, John S. Fitzgerald, Joanna Orysiak, Patrick B. Wilson, Joanna Mazur-Różycka, Zbigniew Obinski
Association Between Vitamin D Status And Testosterone And Cortisol In Ice Hockey Players, John S. Fitzgerald, Joanna Orysiak, Patrick B. Wilson, Joanna Mazur-Różycka, Zbigniew Obinski
Human Movement Studies & Special Education Faculty Publications
The identification of the vitamin D receptor in tissues related to testosterone and cortisol production, in conjunction with the observed correlations between vitamin D levels and these hormones in the general population, suggest vitamin D may influence testosterone and cortisol concentrations in athletes. A crosssectional study design was used to evaluate the association between 25(OH)D and testosterone and cortisol concentrations in young male ice hockey players (n = 50). All athletes were recruited during October from the Sosnowiec area, Poland (50° N). Commercially available ELISA kits were used to determine total serum 25(OH)D, testosterone and cortisol concentrations. Serum 25(OH)D …