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dc.contributor.authorHough, John
dc.contributor.authorRobertson, Caroline
dc.contributor.authorGleeson, Michael
dc.contributor.illustrator
dc.date.accessioned2020-08-14T10:43:22Z
dc.date.available2020-08-14T10:43:22Z
dc.date.issued2015-12-31
dc.identifier.citationHough J, Robertson C, Gleeson M (2015) 'Blunting of exercise-induced salivary testosterone in elite-level triathletes with a 10-day training camp', International Journal of Sports Physiology and Performance, 10 (7), pp.935-938.en_US
dc.identifier.issn1555-0265
dc.identifier.pmid25710620
dc.identifier.doi10.1123/ijspp.2014-0360
dc.identifier.urihttp://hdl.handle.net/10547/624414
dc.description.abstractPurpose: This study examined the influence of 10 days of intensified training on salivary cortisol and testosterone responses to 30-min, high-intensity cycling (55/80) in a group of male elite triathletes. Methods: Seven elite male triathletes (age 19 ± 1 y, VO2max 67.6 ± 4.5 mL · kg-1 · min-1) completed the study. Swim distances increased by 45%. Running and cycling training hours increased by 25% and 229%, respectively. REST-Q questionnaires assessed mood status before, during, and after the training period. Unstimulated saliva samples were collected before, after, and 30 min after a continuous, high-intensity exercise test. Salivary cortisol and testosterone concentrations were assessed. Results: Compared with pretraining, blunted exercise-induced salivary testosterone responses to the posttraining 55/80 were found (P = .004). The absolute response of salivary testosterone concentrations to the 55/80 decreased pretraining to posttraining from 114% to 85%. No changes were found in exercise-induced salivary cortisol concentration responses to the 55/80. REST-Q scores indicated no changes in the participants' psychological stress-recovery levels over the training camp. Conclusions: The blunted exercise-induced salivary testosterone is likely due to decreased testicular testosterone production and/or secretion, possibly attributable to hypothalamic dysfunction or reduced testicular blood flow. REST-Q scores suggest that the triathletes coped well with training-load elevations, which could account for the finding of no change in the exercise-induced salivary cortisol concentration. Overall, these findings suggest that the 55/80 can detect altered exercise-induced salivary testosterone concentrations in an elite athletic population due to increased training stress. However, this alteration occurs independently of a perceived elevation of training stress.en_US
dc.language.isoenen_US
dc.publisherHuman Kinetics Publishers Inc.en_US
dc.relation.urlhttps://journals.humankinetics.com/view/journals/ijspp/10/7/article-p935.xmlen_US
dc.rightsBlue - can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
dc.subjecttriathlonen_US
dc.subjectsalivary cortisol,en_US
dc.subjectsalivary cortisolen_US
dc.subjectendocrineen_US
dc.subjectexercise trainingen_US
dc.titleBlunting of exercise-induced salivary testosterone in elite-level triathletes with a 10-day training campen_US
dc.typeArticleen_US
dc.identifier.journalInternational Journal of Sports Physiology and Performanceen_US
dc.date.updated2020-08-14T10:41:24Z
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