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 journalArticle

18 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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