Acute caffeine consumption improves the performance of many different athletes. Lara B et al. (2015) showed that acute consumption of a caffeinated beverage or other caffeinated substance could improve the performance of sprinting swimmers. Energy drinks have become very popular in the sports world. Caffeine is no longer a doping substance, which is why athletes are increasingly interested in it to improve their performance. There is now a wide range of studies demonstrating that a moderate dose of caffeine is ergogenic for swimming endurance. Say no to plagiarism. Get a tailor-made essay on "Why violent video games should not be banned"? Get the original essay This study was carried out on fourteen swimmers aged 16 to 22, who completed two trials after ingesting a drink containing caffeine. Swimmers also performed a countermovement jump, handgrip test, and maximum swim test on a swim ergometer. One group drank a caffeinated energy drink and another group drank the same drink without caffeine. This particular group of men were light caffeine consumers, had no history of cardiopulmonary disease, and had not suffered any injuries in the past three months. The substances were ingested 60 minutes before the start of the tests. After the tests were completed, a blood sample was taken. Caffeine consumption has been shown to increase jump height and show higher grip strength during the handgrip test. It also increased maximum power during the swim ergometer test. To determine the amount of caffeine each individual should consume, individuals were weighed 2 days before the start of the first experimental trial. Individuals were encouraged to abstain from any dietary sources of caffeine, alcohol, or stimulants one week before the start of the trail. Individuals began with a 45-minute standardized warm-up and then began the jump test. Two maximal countermovement jumps were performed with one minute of rest in between. The highest jump between the two was used for analysis. Individuals then performed the grip test with both hands. Two attempts were made on both hands, with the higher value used for analysis. After taking a short recovery period, they began swimming as best they could for a 50 meter swim. Three different times were taken for each swim and the one that was the fastest of the three was used for analysis. No other swimmers were present in the pool during each individual's time trial. The last test performed was the swim ergometer test. Swimmers started in a stationary position, then had to swim as fast as possible against resistance. The maximum and average values ​​were taken and used for analysis. A caffeine or placebo substance was administered to trained and untrained swimmers before a 2x100 relay event. After ingesting caffeine, trained swimmers showed great beneficial effects. Trained swimmers reduced the time needed to complete the event by 2%. The performance of the placebo group (untrained swimmers) did not show the same beneficial effect as the trained swimmers. However, both untrained and trained swimmers showed high levels of blood lactate concentrations. The same test was used for a 2x200 free time trial but it did not show the same effectiveness as the other time trial. Caffeine has not been shown to improve.