Salivary hormones and XXXX in relation to physical performance in football.

@entity7571 @entity14552 @entity251 @entity701
UNASSIGNED: Salivary biomarkers have shown to be useful to assess physiological stress in football, but their relationship with physical performance is unknown. The aims of this study were to investigate the effect of a football match on salivary @entity701 , @entity251 and @entity7571 ( @entity7571 ) concentrations in elite footballers, and to examine the relationship of physical performance during the match to these biomarkers. Nine elite football players were assessed before, during and after a friendly international match. Physical performance during the match was measured by time-motion analysis, whilst salivary @entity701 , @entity251 and @entity7571 were measured before and 10  min post-match. The results showed that players covered an average of 9463      458  m during the match. Salivary @entity701 did not change post-match. @entity251 and @entity7571 concentrations decreased by 30.6% and 74.5%, respectively. The @entity251 / @entity701 ( @entity14552 ) ratio decreased by 64.2% after the match. Changes in @entity251 concentrations correlated (r  =  0.85) with distance covered. Pre- and post-match @entity251 levels correlated with post-match @entity7571 concentrations (r  =  0.8 and 0.89, respectively). These results suggest that a football match induces catabolic stress as indicated by the decreased T/C ratio. It seems that footballers with smaller decreases in @entity251 levels covered more distance and decreased their immune function less.
