Global and targeted gene expression and protein content in skeletal muscle of young men following short-term creatine monohydrate supplementation. Some athletes have chosen to ingest additional creatine in the form of a supplement.
These positive effects were attributed to an increased total creatine pool resulting in more rapid adenosine triphosphate ATP regeneration between resistance training sets allowing athletes to maintain a higher training intensity and improve the quality of the workouts along the entire training period.
Furthermore, a questionnaire was used to determine creatine use amongst this age group and does not necessarily reflect the truth. The androstenedione class of prohormones and creatine need to be studied further. Can J Appl Physiol. Most Common Performance-Enhancing Supplements This discussion of performance-enhancing supplements will focus primarily around two of the most common supplements, creatine and steroids, but you will also find links to sites that give information on other types of supplements.
However time to peak concentration, and velocity constants of absorption and elimination, was the same for all three forms of creatine. This antioxidant effect of creatine has been associated with the presence of Arginine in its molecule. However, there is another creatine transporter Crea T2, which is primarily active and present in the testes [ 12 ].
Creatine as a therapeutic strategy for myopathies. However more recent research has shown CM supplementation at doses of 0. Creatine is a hydrophilic polar molecule that consists of a negatively charged carboxyl group and a positively charged functional group [ 64 ].
However, remember that the current work on creatine is largely for very high-intensity, short-duration exercises like weightlifting and sprinting and not toward the lower intensity, longer duration exercises like soccer.
The effect of sodium bicarbonate ingestion on m racing time. However when looking at individual cases from the creatine group the results showed a variance in response.
According to the AAP, the lack of any regulations may ultimately pose a health risk to anyone using these products 4not to mention the fact that they are expensive and most are a waste of money.
Increased cases of muscle tears upon maximal exertion have also been noted. Med Sci Sports Exc. This would indicate that creatine supplementation might be useful to attenuate fatigue symptoms over multiple bouts of high-intensity, short duration exercise.
A survey of teen athletes found that teens take higher doses than recommended during loading and maintenance phases of creatine use and therefore are not recommended to take creatine However, this study did not clearly state if creatine supplementation was administered concurrent with resistance training.
Many different dosages of creatine supplements have been used in studies. International Society of Sports Nutrition position stand: Ongoing, unpublished research says the use of creatine may lead to the development of chronic compartment syndromes in the legs.
Today, the nature of youth sports has changed drastically. Ergogenic effects of creatine in sports and rehabilitation.
Med Sci Sports Exerc. Furthermore, an increase from base line of When orally ingested, CM has shown to improve exercise performance and increase fat free mass [ 5 - 9 ]. This research did not support the claims of the creatine ethyl ester manufacturers.
In addition, it seems that creatine can act as an effective antioxidant agent after more intense resistance training sessions. These results seem to indicate that the addition of polyethylene glycol could increase the absorption efficiency of creatine but further research is needed before a definitive recommendation can be reached.
Round Table, the physiological and health effects of oral creatine supplementation. It has been advised that further research be carried out into the effects of creatine supplementation and health in the elderly and adolescent [ 7375 ].In general, performance enhancing drugs and substances (ergogenic aids) can be categorized into the following areas.
Sports Supplements, Vitamins, and Minerals Athletes often look for alternative nutrition to perform at their best, and sports supplements are one way. Creatine does not improve aerobic (cycling or running) performance. Recovery from high-intensity exercise is enhanced with creatine supplementation.
If athletes recover faster, then perhaps they can begin the next exercise session sooner or they can train at a higher intensity. Creatine is eliminated from the body by the kidneys either as creatine, or as creatinine, which is formed from the metabolism of creatine.
What about creatine supplements and performance? In the early 's it was discovered that increased dietary creatine resulted in increased muscular stores of creatine and phosphocreatine. performance enhancing drugs in sports, doping is arguably the most controversial and most talked-about issue in modern sports.
It is an issue that cuts across all sports, regardless of technology, popularity, or. Beyond creatine’s role as a strength-enhancing supplement, research shows that it may have other potential uses as a sports performance aid.
Creatine may serve as an agent to improve cognitive abilities, prevent disuse atrophy in injured athletes, and help with recovery from concussions. CrS as a performance-enhancing aid by identifying potential ergogenic effects related to this supplement.
Readers are referred to other reviews for aspects of this topic that may not be addressed by this article (Volek and Kraemer, ; Mujika and Padilla, ; Williams and Branch, ; Jacobs, ; Wyss and Kaddurah-Daouk, ; Lemon, ).Download