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Health and Physical Education Commons™
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Full-Text Articles in Health and Physical Education
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 Obminski
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 Obminski
Education, Health & Behavior Studies 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 concentration …
The Relationship Between Ventilatory Threshold And Repeated-Sprint Ability In Competitive Male Ice Hockey Players, Matthew R. Lowery, Grant Tomkinson, Benjamin J. Peterson, John S. Fitzgerald
The Relationship Between Ventilatory Threshold And Repeated-Sprint Ability In Competitive Male Ice Hockey Players, Matthew R. Lowery, Grant Tomkinson, Benjamin J. Peterson, John S. Fitzgerald
Education, Health & Behavior Studies Faculty Publications
Background/objective
The relationship between ventilatory threshold (VT1, VT2) and repeated-sprint ability (RSA) in competitive male ice hockey players was investigated.
Methods
Forty-three male ice hockey players aged 18–23 years competing in NCAA Division I, NCAA Division III, and Junior A level participated. Participants performed an incremental graded exercise test on a skate treadmill to determine V˙" role="presentation" style="box-sizing: border-box; margin: 0px; padding: 0px; display: inline-block; line-height: normal; font-size: 14.4px; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; position: relative;">V˙O2peak, VT1, and VT2 using MedGraphics Breezesuit™ software (v-slope). …