It seems swimmers benefit from creatine too. Sports scientists from Iran will publish an article in Science & Sports showing that 6 days of creatine supplementation improved swimmers' times over 50 metres.
Creatine is the most researched and most effective sports supplement on the market. It's no wonder that so many athletes already use or have used creatine. Studies have shown that in the US creatine is widely used, in gymnastics, football, wrestling, hockey, lacrosse, and even in cheerleading. [Pediatrics 2001 Aug; 108(2): 421-425.]
It looks as though this use is likely to continue. Studies are still showing that creatine supplementation can improve performance even in a sport where you wouldn't expect to see this. The latest Iranian study is one of these.
The researchers experimented with twenty male amateur swimmers, aged 20-21. Ten of them were given a placebo [PL]; ten were given four daily doses of 5 g creatine monohydrate [CR]. The researchers dissolved the supplement in apple juice. Both groups followed the same training programme for the six days the experiment lasted.
When the six days were up, the swimmers in the creatine group swam the 50 m breaststroke in 2.4 seconds less than they had done before the supplementation started. The time of the swimmers in the placebo group only went down by 1.4 seconds. The effect was not significant.
The times for the 100 m improved by the same amount in both groups.
The creatine supplementation boosted the subjectsí testosterone level significantly. Their cortisol level went down, but not by a significant amount. The researchers donít think that the rise in the testosterone level was responsible for the performance improvement. The swimmers in the creatine group whose testosterone level rose higher didnít have better times.
Science & Sports doi:10.1016/j.scispo.2011.07.003.