Objective. The purpose of this study is to investigate the influences of visual feedback on power performance during leg press.Design. The research was conducted as an experimental procedure with a cross-over design.Setting, participants and main outcome measures. Sixteen, elite, female, field hockey players aged 16-27 years were randomly assigned to two groups. Both groups were tested with and without visual feedback, but in the reverse order. The test protocol consisted of familiarisation followed by two test trials. The visual feedback was produced by and displayed on a computer that was used to record the power output.Results. Power performance was significantly better with visual feedback than without visual feedback (p=0.027). There was no significant interaction between the testing order, suggesting no carry over effect (p=0.212).Conclusion. Visual feedback has a significant positive effect on the power performance of elite, female, field hockey players using a leg press.