Výsledky vyhledávání - "Blair T. Crewther"

Akademický článek

Digit Ratio (2D:4D), Aggression, and Testosterone in Men Exposed to an Aggressive Video Stimulus

Autor: Liam P. Kilduff, Renato N. Hopp, Christian J. Cook, Blair T. Crewther, John T. Manning

Publikováno v: Evolutionary Psychology, Vol 11 (2013)

The relative lengths of the 2 nd and 4 th digits (2D:4D) is a negative biomarker for prenatal testosterone, and low 2D:4D may be associated with aggression. However, the evidence for a 2D:4D-aggression association is mixed. Here we test the hypothesi

Externí odkaz: https://doaj.org/article/1462c342a94a48e6bc6ce6de772165b5

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Akademický článek

Associations between the Big Five personality traits, testosterone, and cortisol in adolescent male athletes

Autor: Blair T Crewther, Zbigniew Obmiński, Dariusz Turowski, Beata Szczepańska, Helena Mroczkowska

Publikováno v: Biology of Sport, Vol 41, Iss 1, Pp 279-286 (2023)

Testosterone (T) has been conceptualized as a biomarker of individual differences, yet T associations with the Big Five personality traits are inconsistent. Athletes provide a suitable model for evaluation here, as T co-expresses traits related to ma

Externí odkaz: https://doaj.org/article/8df9cb63ef9f4fce98ccd2d3af4a2637

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Akademický článek

Disentangling the dynamic interplay between muscle damage and energetics in male boxers during a short training block

Autor: Zbigniew Obmiński, Blair T Crewther, Christian J Cook

Publikováno v: Biology of Sport, Vol 41, Iss 1, Pp 69-75 (2023)

Boxing is a combat sport linked to muscle damage (e.g., soreness, rising creatine kinase [CK]) and energetic biomarkers (e.g., urea, glucose). These factors have not, however, been examined dynamically in terms of day-to-day, lagged and reciprocal ef

Externí odkaz: https://doaj.org/article/8a452dabecb1488783ae10ab38ee9a83

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Akademický článek

Serum cortisol as a moderator of the relationship between serum testosterone and Olympic weightlifting performance in real and simulated competitions

Autor: Blair T Crewther, Zbigniew Obmiński, Christian J Cook

Publikováno v: Biology of Sport, Vol 35, Iss 3, Pp 215-221 (2018)

Some equivocality exists regarding the effect of testosterone (T) on competitive performance with cortisol (C) implicated as a moderating factor. This study investigated whether C is moderating the T relationship with Olympic weightlifting (OWL) perf

Externí odkaz: https://doaj.org/article/87c60a02c3794a80b08be21ed7269f89

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Impact of one HF-rTMS session over the DLPFC and motor cortex on acute hormone dynamics and emotional state in healthy adults: a sham-controlled pilot study

Autor: Rafal Rola, Wiktoria Kasprzycka, Blair T. Crewther, Christian J. Cook

Publikováno v: Neurological Sciences. 43:651-659

Studies indicate that high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) can lower cortisol concentration or output, with some evidence suggesting a link to testosterone. Together, these stress and social hormones might help regula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a89d9d46a841fdb47d20101128d4e23
https://doi.org/10.1007/s10072-021-05335-7

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Diurnal Within-Person Coupling Between Testosterone and Cortisol in Healthy Men: Evidence of Positive and Bidirectional Time-Lagged Associations Using a Continuous-Time Model

Autor: Blair T. Crewther, Christian J. Cook, Martin Hecht

Publikováno v: Adaptive Human Behavior and Physiology. 7:89-104

The hypothalamic-pituitary-gonadal (HPG) and -adrenal (HPA) axes are traditional viewed as mutually inhibitory systems. However, several diurnal studies have reported positive within-person testosterone and cortisol relationships, as evidence of faci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37c5e3ffda7e953caa8ca3b171c4a362
https://doi.org/10.1007/s40750-021-00162-8

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Modest Exercise-Induced Increases in Testosterone Concentration Are Not Associated with Mating Strategy Change in Healthy Young Men

Autor: Piotr Sorokowski, Judyta Nowak, Andrew G. Thomas, Sylwester Orzechowski, Marta Kowal, Blair T. Crewther, Agnieszka Żelaźniewicz

Publikováno v: Evolutionary Psychological Science. 7:298-303

Research has demonstrated that increases in testosterone (T) concentration can affect the expression of behaviours and preferences that are typical of high mating effort. However, little research has considered whether such T increases affect mating

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::846473538afc41ec7f1b38240c8e34fc
https://doi.org/10.1007/s40806-021-00275-z

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Vitamin D and Cortisol as Moderators of the Relationship Between Testosterone and Exercise Performance in Adolescent Male Athletes

Autor: Joanna Orysiak, John S. Fitzgerald, Christian J. Cook, Blair T. Crewther, Michał Górski, Michał Starczewski

Publikováno v: Pediatric Exercise Science. 32:204-209

Purpose: Reported associations between vitamin 25(OH)D and exercise performance are equivocal, perhaps due to complex interplay with cortisol and testosterone. In this study, the authors investigated serum 25(OH)D and cortisol as moderators of the te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1908dd3a6b1378fd24de90c961d4e7bb
https://doi.org/10.1123/pes.2019-0229

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