Salivary testosterone and cortisol in rugby players: correlation with psychological overtraining items

Maso, Freddy

doi:10.1136/bjsm.2002.000254

Cited by 99 publications

(75 citation statements)

References 21 publications

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“…the measurement of t, F, and various steroid hormones is utilized in research fields such as sports medicine, clinical psychology, and pediatric clinic [6,16,17,21,27]. However, values markedly differ among investigators.…”

Section: Discussionmentioning

confidence: 99%

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Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) Assay for Simultaneous Measurement of Salivary Testosterone and Cortisol in Healthy Men for Utilization in the Diagnosis of Late-onset Hypogonadism in Males

et al. 2009

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Abstract. it is well known that late-onset hypogonadism in males can cause a variety of symptoms, and the differential diagnosis is relatively difficult, including psychological disorders, stress, and mood disturbances. The level of serum cortisol can be measured to reflect a patient's level of stress. Salivary hormones facilitate the evaluation of physiological hormonal actions based on free hormone assay. For the simultaneous measurement of testosterone and cortisol levels in saliva, we validate a sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay. Concerning accuracy and precision, the lower limit of quantification of salivary testosterone and cortisol were established as 5 and 10 pg/mL, respectively. Testosterone and cortisol in saliva is stable for 2 days, 14 days, and 28 days at room temperature, refrigeration and frozen, respectively. Freezing and thawing for 3 cycles and stimulation of salivation with gum chewing do not alter the measured values of testosterone and cortisol. Total, bioavailable, and free serum testosterone showed slight diurnal changes, but total and bioavailable serum cortisol showed marked diurnal changes. Salivary testosterone levels negatively correlate with age, regardless of the time of saliva collection (r=0.64, p<0.05). However, there is no relationship between salivary cortisol and age (r=0033, p>0.05). LC-MS/MS allows rapid, simultaneous, sensitive, and accurate quantification of testosterone and cortisol in saliva for the diagnosis late-onset hypogonadism or other hormone related disease. 2]. The differences may be associated with molecular structure variations in water solubility, differences in binding affinity to sex hormone-binding globulin (shBg) in serum, or the serum free hormone ratio [3]. However, the mechanism by which hormones are secreted in saliva via blood remains to be clarified. Autoradiograms showed free T was secreted in saliva without binding to SHBG [4]. Recent studies reported t and F in saliva were useful for evaluating bioavailability and accurately reflected serum hormone activity [1,3,[5][6][7][8]. Some studies indicated the measurement of salivary hormone levels facilitated the evaluation of precise physiologic actions based on free hormone activity, which could not be confirmed based on total blood hormone levels [1,3,6,9]. therefore, salivary hormone measurements have re-

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Section: Discussionmentioning

confidence: 99%

“…salivary testosterone is not only utilized to evaluate androgen related conditions, but also in research on emotion and sports medicine [15][16][17]. Some investigators proposed salivary testosterone level as a criterion of late-onset hypogonadism (Loh) in males [7,18].…”

Section: Extraction and Purification Of T And F In Saliva And Serummentioning

confidence: 99%

Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) Assay for Simultaneous Measurement of Salivary Testosterone and Cortisol in Healthy Men for Utilization in the Diagnosis of Late-onset Hypogonadism in Males

et al. 2009

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“…However, during a rest day, endurance athletes' serum TC concentrations have been reported as normal [47]. As the T:C ratio has been implicated as a marker of overtraining and training status [3,102], prior physical activity may influence findings of sal-T and sal-C investigations when examining individuals with a high training volume. It is common practice to exclude physical activity for 24 h prior to study commencement, which is preferential.…”

Section: Acute and Habitual Physical Activitymentioning

confidence: 99%

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2016

Int J Sports Med

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“…Por fim, estudos que investiguem os efeitos das cargas de treinamento e os estados de estresse e recuperação em modalidades coletivas são escassos 10 , o que torna grande a relevância de pesquisas com esse tipo de modalidade.…”

Section: Introductionunclassified

Cargas elevadas de treinamento alteram funções cognitivas em jogadores de futebol

Matos

Samulski

Lima

et al. 2014

Rev Bras Med Esporte

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RESUMOIntrodução: No esporte de rendimento, altas cargas de treinamento são necessárias para que ocorram adaptações biológicas que levem ao aprimoramento da forma física e do desempenho esportivo. Objetivo: Investigar o comportamento de variáveis psicológicas e fisiológicas, possíveis indicadores dos estados de estresse e recuperação, em jogadores de futebol ao longo da temporada esportiva, e a possibilidade da utilização desses como marcadores dos estados de treinabilidade dos atletas para prevenir quedas do desempenho e o overtraining. Métodos: Participaram deste estudo 14 jogadores de futebol (18,4 ± 0,6 anos, 9,64 ± 1,61 % com gordura e VO 2máx 49,46 ± 2,88 ml/kg/min) da categoria júnior de uma equipe de primeira divisão do Brasil. Foram monitorados a percepção de estresse e a recuperação por meio do questionário RESTQ-Sport, a variabilidade de frequência cardíaca (VFC) de repouso, analisada no domínio do tempo e da frequência, e o tempo de reação simples. Efetuaram-se três coletas de dados, um controle (C), outra após quatro semanas de treinamentos intensos (T1), e finalmente depois de quatro semanas de treinamentos leves (T2) realizados após T1. Resultados: Não foi encontrada diferença significativa em nenhuma das escalas do RESTQ--Sport e na VFC nos três momentos de coletas. O tempo de reação simples apresentou um aumento significativo (p = 0,047) em T1 em relação a C. Conclusão: Os resultados indicam que o tempo de reação foi a única variável sensível às alterações do treinamento estudado, podendo ser considerado um bom indicador da treinabilidade dos atletas.Palavras-chave: estresse fisiológico, frequência cardíaca, recuperação de função fisiológica, tempo de reação. ABSTRACT Introduction: In the performance sports, high training loads are necessary for biological adaptations to occur leading to the improvement of fitness and sports performance. Objective: To investigate the behavior of the psychological and physiological variables, indicators of possible states of stress and recovery in soccer players throughout the sports season, and the possibility of using these as markers of the conditions of athletes trainability to

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Salivary testosterone and cortisol in rugby players: correlation with psychological overtraining items

Cited by 99 publications

References 21 publications

Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) Assay for Simultaneous Measurement of Salivary Testosterone and Cortisol in Healthy Men for Utilization in the Diagnosis of Late-onset Hypogonadism in Males

Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) Assay for Simultaneous Measurement of Salivary Testosterone and Cortisol in Healthy Men for Utilization in the Diagnosis of Late-onset Hypogonadism in Males

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Cargas elevadas de treinamento alteram funções cognitivas em jogadores de futebol

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