The Behaviour of the Plasma Free Testosterone/Cortisol Ratio during a Season of Elite Rowing Training

Abstract

During nine months of training preceding the 1988 Olympic Games, six elite male rowers were regularly subjected to an investigation to changes in the rest values of the free testosterone/cortisol ratio (FTCR). In addition, the rowers were subjected to an exercise test on rowing ergometer. When comparing the FTCR levels through the season with the initial level, the results show that during periods of heavy training (training camp) the rest levels of the FTCR decrease (range 5-50%) in most of the rowers. During periods of less intensive training, the opposite is the case for the behaviour of the FTCR. The FTCR value never dropped below 0.35*10(-3), a value which is considered to be the threshold of overstrain. Moreover, decreases in the FTCR of more than 30% relative to preceding values were often found. These decreases are not indicative for overstrain but should be related to temporary incomplete recovery from intensive training. However, it remains to be demonstrated that periods of prolonged decreases (several months) in the level of the FTCR may finally lead to a situation of overstrain or overtraining in an athlete. Power at 4.0 mmol lactate (P4.0) and maximal power (PM) did not show a relation with the hormonal parameters.

Respostas hormonais e imunes agudas decorrentes do treinamento de força em bi-set

“…Segundo Vervoorn et al 28 e Banfi et al 26 caso a diminuição da razão T/C seja maior que 30% o indivíduo pode se encontrar em uma situação de cansaço e/ou uma recuperação incompleta, caracterizando uma condição de catabolismo e prejudicando a resposta adaptativa aos treinamentos.…”

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“…wskaź ni kiem wol ne go an dro ge nu (FAI) [2][3][4][5]. WAK mo że być rów nież ob li cza ny w opar ciu o wol ne frak cje obu hor mo nów ozna cza nych w śli nie.…”

Compreendendo o overtraining no desporto: da definição ao tratamento

“…c) Razão Testosterona/Cortisol (T/C): Adlercreutz et al [1] propuseram que a diminuição superior a 30% na razão T/C indicaria o estado de OT. Embora alguns estudos tenham constatado alterações na razão T/C durante períodos de treinamento intenso [40,88], a maioria dos pesquisadores não verificou tais alterações em uma série de atletas incluindo corredores [20,23,86] e nadadores [20,33,40]. Além disso, alguns estudos verificaram queda igual ou superior a 30% na razão T/C, que correspondeu com ganho de performance [19,32].…”