Relationships between salivary free testosterone and the expression of force and power in elite athletes

Blair T Crewther, Liam P Kilduff, C.J. Cook, D.J. Cunningham, P. Bunce, R.M. Bracken, Christopher M. Gaviglio

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Aim. This study examined the predictive relationships between the salivary free testosterone (T) concentrations of elite athletes and the expression of force and power. Methods. A group of elite male rugby players (N.-64) were assessed for peak force (PF), peak rate of force development (PRFD), force at 100 milliseconds (F100 ms) and 250 milliseconds (F250 ms) during an isometric mid-thigh pull (IMTP), and/or peak power (PP) and height during a countermovement jump (CMJ). Saliva samples were collected before testing and assayed for free T. Relationships between individual T concentrations and performance were assessed as a pooled group and 4 sub-groups of equal size. Results. As pooled data sets, none of the IMTP and CMJ performance variables were significantly correlated with free T in either the PF or PP groups (r0.01-0.23). The PF and PP abilities of the 4 sub-groups were significantly different, so that PF1>PF2>PF3>PF4 (PPP2>PP3>PP4 (P
Original languageEnglish
Pages (from-to)221-227
Number of pages7
JournalJournal of Sports Medicine and Physical Fitness
Volume52
Issue number2
Publication statusPublished - 2012
Externally publishedYes

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