Evidence-based: Creatine Effectiveness
Creatine is a popular supplement among athletes, bodybuilders, and fitness enthusiasts. It is a naturally occurring substance found in our muscles, and it is also present in foods such as meat and fish. Creatine is known for its ability to increase strength, power, and muscle mass, and it has been studied extensively over the past few decades. In this article, we will explore the evidence behind creatine effectiveness and its benefits and risks.
What is creatine?
Creatine is a compound made up of three amino acids: arginine, glycine, and methionine. It is synthesized in our bodies and is also obtained from dietary sources such as meat and fish. Creatine is stored in our muscles in the form of phosphocreatine, which is used to produce energy during high-intensity exercise.
Creatine and muscle performance
Creatine has been shown to increase muscle strength and power, particularly during high-intensity exercise such as weightlifting and sprinting. This is because creatine increases the amount of phosphocreatine in our muscles, which allows us to produce more energy during short bursts of activity. Several studies have shown that creatine supplementation can lead to significant increases in muscle strength and power, particularly in activities that require short bursts of energy, such as weightlifting and sprinting. A meta-analysis of 22 studies found that creatine supplementation increased strength by an average of 8% and power by an average of 14%.
Creatine and muscle mass
Creatine has also been shown to increase muscle mass, particularly when combined with resistance training. This is because creatine supplementation can lead to increased water content in our muscles, which can contribute to muscle hypertrophy (growth). Several studies have shown that creatine supplementation can lead to significant increases in muscle mass, particularly when combined with resistance training. A meta-analysis of 18 studies found that creatine supplementation increased muscle mass by an average of 0.5 kg (1.1 lbs) over a period of 4-12 weeks.
Creatine and endurance performance
While creatine is primarily known for its benefits in high-intensity exercise, it may also have benefits for endurance performance. One study found that creatine supplementation improved running performance in trained runners by 2-3%. However, the evidence for creatine's benefits in endurance performance is mixed, with some studies showing no effect. More research is needed to determine the extent of creatine's benefits for endurance performance.
Creatine and cognitive function
There is some evidence to suggest that creatine supplementation may have benefits for cognitive function, particularly in tasks that require short-term memory and intelligence. One study found that creatine supplementation improved working memory and intelligence in vegetarians, who have lower levels of creatine in their brains compared to meat-eaters. However, more research is needed to determine the extent of creatine's benefits for cognitive function.
Risks of creatine supplementation
Creatine supplementation is generally safe when taken in recommended doses. However, there are some potential risks to be aware of. One potential risk is dehydration, as creatine can increase water retention in our muscles. It is important to drink plenty of water when taking creatine to prevent dehydration. Another potential risk is kidney damage, although this is rare and generally only occurs in people with pre-existing kidney conditions. Finally, some people may experience gastrointestinal discomfort, such as bloating and diarrhea, when taking creatine. This can often be avoided by taking creatine with food and/or using a lower dose.
Conclusion
Creatine is a popular supplement with a lot of evidence behind its effectiveness for increasing muscle strength, power, and mass. It may also have benefits for endurance performance and cognitive function, although more research is needed in these areas. Creatine supplementation is generally
reference
Related Articles
Your future Success!Recovery
How to icing for recovery and healing!The role of sleep in athletic performance
More articles from AZSP Blog