Serve is one of the main weapons in tennis: players like Roger Federer, John Isner, Kevin Anderson, Stan Wawrinka, Andy Murray, Serena Williams and Maria Sharapova have achieved great victories thanks to the accuracy of their service.
The Effects of Caffeine on Tennis Serve Accuracy study by the International Journal of Exercise Science brings together caffeine and tennis serve, leading researchers to very interesting results. Here is an abstract of the article: "This study examined the effects of caffeine on tennis serves accuracy.
Division II tennis athletes (n = 10) completed two serve trials (double-blind, counterbalanced) following ingestion of 6 mg / kg of caffeine or matched placebo an hour prior to data collection. During each tennis serves trial, participants completed 48 non-fault serves divided into 3 sets with 2 serves for 8 different targets.
Following each 2 serves per target format, participants completed a shuttle run sprint. Separate 2 (trial) × 8 ( targets) repeated measures analysis of variances (ANOVAs) were used for distances from the target center "delta", and necessary tries for each of the 3 sets.
A 2 (treatment) × 3 (set) repeated measures ANOVA was used for shuttle run times.While results were not significant, the treatment main effect approached significance (p = 0.07) in set 2 for the delta of distances when comparing caffeine (96.2 cm ± 19.8) versus placebo (107.1 cm ± 16.3).
in sprint times, each sprint was consistently faster following caffeine consumption. Post-trial surveys revealed subjective responses approached significance with greater feelings of stomach distress (p = 0.08) and nervousness (p = 0.13) following caffeine and elevated feeling of fatigue (p = 0.19) following placebo.
Therefore, with no impairment in serves accuracy coupled with some evidence of reduced fatigue, results suggest caffeine may benefit tennis athletes. Extending the understanding of the effects of caffeine on tennis serves accuracy and performance could benefit overall match performance, with the potential of improving the match outcome in extended playtime." These are really interesting results.