Caffeine + Kreatin = ???

Hey!

Nu sværmer det jo desværre en del rygter/myter på nettet om kreatin, en af dem er at coffein skulle nedsætte virkningen.

Hvad siger i? Kan jeg godt spise coffein (fra bodylab) og fortsætte med kreatin, eller vil det resultere i den visse død?

Hvis dette emne allerede er "mythbusted" så beklager jeg

En enkelt google søgning på caffein+creatine


Creatine & Caffeine... The Forbidden Combination?


The creatine and caffeine issue has been discussed pretty extensively in both the athletic and scientific communities. However, most people don't even know why such a debate exists. What exactly is the concern? Well let's talk a little history.

The creatine and caffeine debate started about four years ago when one single scientific study concluded that "caffeine counteracts the effects of a creatine loaded muscle" (1). This statement was shocking because the purpose of the study was to see if the two agents could work together to increase exercise performance, not to see if they would interfere with each other. Researchers and athletes have long known that caffeine and creatine independently improve performance so a combination would be the next logical step.

Creatine works on the phosphocreatine and ATP systems while possibly buffering exercise produced hydrogen protons (acid), while caffeine demonstrates a powerful stimulation for the release of epinephrine. So theoretically, one could take both to gain more of a performance edge. But this study showed that maybe they don't work together. Even further, it showed that maybe they interfere with each other. So if this is the case and caffeine does counteract the effect of a creatine loaded muscle then there is no debate. The answer is to avoid consuming beverages that contain caffeine if you want your money spent on creatine to work for you.

But as usually is the case, things are not so simple. Although some individuals avoid this combination like the plague, we don't think this is necessary. So while you're here, go ahead and grab a cup of coffee. Then add your desired amount of crystals - creatine, not sugar; if you haven't already had your dose for the day. Based on further scientific data and scrutiny, you just might not have to give either one up.


http://www.bodybuilding.com/fun/berardi5.htm


OG et andet link for at understøtte lidt

Findings conclude sustained caffeine intake negates the benefits of creatine supplements
New study on the effects of combining caffeine and creatine
(March 12, 2002) Bethesda, MD -- The serious athlete knows better than to rely just on a famous cereal to provide additional energy in preparation of a sporting event. Supplements have assumed an important role in today's training regimen. Some -- such as anabolic steroids -- have been deemed illegal by most sports authorities. Others -- such as caffeine and creatine -- are controversial yet presently allowed.
Background
Caffeine, the primary ingredient of coffee, is used as a central nervous system stimulant, diuretic, circulatory and respiratory stimulant, and as an adjunct in the treatment of headaches. Evidence shows that caffeine intensifies muscle contractions, masks the discomfort of physical exertion, and even speeds up the use of the muscles' short-term fuel stores. Some exercise physiologists believe that caffeine might improve performance by increasing fat oxidation and conserving muscle glycogen.

Creatine is used by athletes to increase lean body mass and improve performance in single and repetitive high-intensity, short-duration exercise tasks such as weightlifting, sprinting, and cycling. It is a popular nutritional supplement that is used by physically active people - from recreational exercisers to Olympic and professional athletes. According to a recent survey, 28 percent of athletes in an NCAA Division IA program reported using creatine. The creatine that is normally present in human muscle may come from two potential sources: dietary (animal flesh) and internally manufactured.

The purpose of creatine supplementation is to increase either total creatine stores or phosphocreatine (PCr) stores within muscle. Supplementation increases the rate of resynthesis of creatine phosphate following exercise. Various studies have shown increased muscle PCr levels after supplementing with 20-30 grams of creatine monohydrate daily.

Creatine supplementation has also been known to shorten relaxation time during intermittent maximal iosometric muscle contraction. This shortened time, coupled with a creatine loaded muscle facilitates calcium absorption into the sarcoplasmic reticulum (the endoplasmic reticulum of skeletal and cardiac muscle). However, some believe that caffeine intake enhances calcium release from the sarcoplasmic reticulum.

The Study
This has lead a research team from Belgium to suggest that the combined effects of creatine and caffeine supplementation may be counterproductive to creatine's effect on muscle relaxation time. The authors of the study, "Opposite Actions of Caffeine and Creatine on Muscle Relaxation Time in Humans" are P. Hespel, B. Op 'T Eijnde, and M. Van Leemputte, all from the Department of Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium. Their findings appear in the February 2002 edition of the Journal of Applied Physiology.

Methodology
Ten physical education students (nine men and one woman) participated in the study. They were told to abstain from medication and caffeine intake one week prior to the experiment. The subjects were additionally asked to avoid changes in their level of physical activity and diet during the 25-week duration of the study. In this double blind experiment, the subjects performed the exercise test before and after creatine supplementation, short-term caffeine intake, creatine supplementation in the short term, acute caffeine intake, or a placebo.

This study required the random assignment of the students into five experimental protocols, each lasting eight days. Three elements were measured during an experiment consisting of 30 intermittent contractions of quadriceps entailing two seconds of stimulation and two seconds of rest. Measurements included maximum torque (Tmax), contraction time (CT) from 0.25 to 0.75 of Tmax, and relaxation time (RT) from 0.75 to 0.25 of max.

Results
Key findings of this study included:

· a confirmation of the fact that oral creatine supplementation shortens muscle relaxation time in humans: relation time was reduced by five percent and was significantly shorter than after the placebo;

· discovery that the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine intake on relaxation time and fatigue enhanced this inhibitory effect; and

· the observation that caffeine reduces the functional capacity of sacroplasmic reticulum calcium ATPase.

Conclusion: The researchers believe that the findings from this experiment offer indirect evidence that suggests that facilitation of muscle relaxation may be important to the ergogenic action of creatine supplementation as well as power production during sprint exercises.

However, for the athlete in training, the key finding is that sustained caffeine intake, over a three-day period, negates the benefits of creatine supplements.

Source
February edition of the Journal of Applied Physiology.

The American Physiological Society (APS) was founded in 1887 to foster basic and applied science, much of it relating to human health. The Bethesda, MD-based Society has more than 10,000 members and publishes 3,800 articles in its 14 peer-reviewed journals every year.

http://www.scienceblog.com/community/ol ... 02833.html

Omg der var meget, læste det meste af det, så coffein og kreatin fungere fint sammen. Kanon!

Omg der var meget, læste det meste af det, så coffein og kreatin fungere fint sammen. Kanon!

Har du læst det godt nok så?


the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine


Hurtigt oversat skriver de at koffein kombineret med dagligt kreatin indtag vil modvirke de fordelagtige ting ved kreatinen

Omg der var meget, læste det meste af det, så coffein og kreatin fungere fint sammen. Kanon!

Har du læst det godt nok så?


the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine


Hurtigt oversat skriver de at koffein kombineret med dagligt kreatin indtag vil modvirke de fordelagtige ting ved kreatinen

Men i den aller første stod der da at det godt kunne, nok bare mig der stadig har lidt vinter ferie hjerne.

Omg der var meget, læste det meste af det, så coffein og kreatin fungere fint sammen. Kanon!

Har du læst det godt nok så?


the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine


Hurtigt oversat skriver de at koffein kombineret med dagligt kreatin indtag vil modvirke de fordelagtige ting ved kreatinen

Lige netop det punkt der er der ingen af de kloge hoveder der kan blive enige om.. det har været debatteret et utalt af gange på et utal af forummer, jeg vil sige det sådan her.. jeg drikker kaffe.. meget kaffe.. og jeg er ikke i tvivl om at mit kreatin stadig virker.... så jeg stopper ihvertfald ikke med at drikke kaffe..

Omg der var meget, læste det meste af det, så coffein og kreatin fungere fint sammen. Kanon!

Har du læst det godt nok så?


the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine


Hurtigt oversat skriver de at koffein kombineret med dagligt kreatin indtag vil modvirke de fordelagtige ting ved kreatinen

Lige netop det punkt der er der ingen af de kloge hoveder der kan blive enige om.. det har været debatteret et utalt af gange på et utal af forummer, jeg vil sige det sådan her.. jeg drikker kaffe.. meget kaffe.. og jeg er ikke i tvivl om at mit kreatin stadig virker.... så jeg stopper ihvertfald ikke med at drikke kaffe..

Kaffe kan man ikke få for meget af men coffein pillerne er vel mere koncentrert ? Måske hvis man nu tog sin coffein og kreatin med et godt mellemrum

Synes også man skal passe for meget på med at rette sig efter sådanne artikler, fordi selvom de har vist det ene, så er menneskekroppen jo noget underligt noget og jeg går ind for at man prøver det selv og ser hvordan man reagerer på det

nu var det bare lige de 2 første artikler jeg ku finde..

Synes også man skal passe for meget på med at rette sig efter sådanne artikler, fordi selvom de har vist det ene, så er menneskekroppen jo noget underligt noget og jeg går ind for at man prøver det selv og ser hvordan man reagerer på det

nu var det bare lige de 2 første artikler jeg ku finde..

Det er bare lidt svært imo, at "regne ud" hvilke effekter/resultater er ens egne eller hvilke skyldes kreatinen. Især når man har kørt det siden start.

syns klart stofferne modvirker hindanen.
Ikke at jeg har læst artiklen men har da hørt lidt om rygterne.
Det bedre at bruge dem hver for sig, fx gir en slat kaffe kvik up effekt lige inden træning.= mere styrke og lidt mere gejst.
kreatin har da også sin virkning af og til, men den er dog noget aftaget efter års brug af dette
har vel brugt det ca 2-4 gange pr år gennem 7-8 år.