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#1 |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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Everything You Ever Wanted To Know About Creatine
Gang, I recently put together a long report on creatine covering just about everything a person could ever want to know about this supplement. The report covers creatine’s possible role in many human aliments as well as its more obvious sports uses. This report should be of use to both the lay public and clinicians alike. The report is FREE!
Here is the table of contents or your perusal: Section one: What is creatine? How does creatine work? Section Two: Creatine and Sarcopenia Effects of creatine on older adults The secret of aging: cellular energetics Anti-inflammatory effects of creatine Creatine effects on the function of healthy and damaged brains. Creatine and the healthy brain Creatine and neuromuscular diseases More brain related research: Creatine and neurological protection Creatine and heart function References for Section Two: Section Three Effects on Growth Hormone (GH) Creatine may reduce homocysteine levels Creatine and chronic fatigue/fibromyalgia Creatine safety issues: fact or fiction? References for Section Three: Section Four Recommended doses To load or not to load Creatine and athletics The creatine and sugar story Pre made creatine/sugar mixtures Purity issues So who sells Creapure brand creatine? Conclusion Additional references of interest This free report can be downloaded at: http://www.creatine-report.com/ Enjoy! |
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#2 |
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Member
Join Date: May 2004
Posts: 3,040
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Interesting. Any plans to add info about di/tri creatine malate or creatine ethyl ester?
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#3 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#4 | |
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Member
Join Date: May 2004
Posts: 3,040
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Quote:
Anyway, as a free download it provides some useful info. Thanks for sharing. |
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#5 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#6 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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Quote:
1: J Strength Cond Res. 2004 Aug;18(3):610-7. * Acute Creatine Monohydrate Supplementation: A Descriptive Physiological Profile of Responders vs. Nonresponders. Syrotuik DG, Bell GJ. Faculty of Physical Education and Recreation, University of Alberta, Edmonton, Canada. Syrotuik, D.G., and G.J. Bell. Acute creatine monohydrate supplementation: a descriptive physiological profile of responders vs. nonresponders. J. Strength Cond. Res. 18(3):610- 617. 2004.-The purpose of this study was to describe the physiological profile of responders (>20 mmol.kg(-1) dry weight [dw] increase in total intramuscular creatine monohydrate [Cr] + phosphorylated creatine [PCr]) versus nonresponders (<10 mmol.kg(-1) dw increase) to a 5-day Cr load (0.3 g.kg(-1).d(-1)) in 11 healthy men (mean age = 22.7 years). Pre-post 5-day cellular measures included total resting Cr content (Cr + PCr), fiber type composition, and fiber type cross-sectional area (CSA) determined from muscle biopsies of the vastus lateralis. Body mass, daily dietary intake, 24-hour urine outputs, urinary Cr and creatinine (CrN), and strength performance measures (1 repetition maximum [1RM] bench and leg press) were also assessed before and after the 5-day loading period. Results indicated that there were 3 levels of response to the 5-day supplementation: responders (R), quasi responders (QR), and nonresponders (NR) with mean changes in resting Cr + PCr of 29.5 mmol.kg(-1) dw (n = 3), 14.9 mmol.kg(-1) dw (n = 5), and 5.1 mmol.kg(-1) dw (n = 3), respectively. The results support a person-by-treatment interaction to acute Cr supplementation with R possessing a biological profile of lowest initial levels of Cr + PCr, greatest percentage of type II fibers, and greatest preload muscle fiber CSA and fat-free mass. Responders also showed improvement in 1RM leg press scores following the 5-day loading period. NR had higher preload levels of Cr + PCr, less type II muscle fibers, small preload muscle CSA, and lower fat-free mass and displayed no improvements in 1RM strength scores. The results suggest that to be considered a responder to acute oral supplementation, a favorable preexisting biological profile may determine the final extent to which an individual responds to supplementation. Physiologic profiles of nonresponders appear to be different and may limit their ability to uptake Cr. This may help partially explain the reported equivocal performance findings in the Cr supplementation literature. |
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#7 |
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Member
Join Date: May 2004
Posts: 3,040
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I've seen the above study on Pubmed and even with the ingestion of appropriate simple carbs some people are still non responders. Users then essentially have two options: give up, or experiment with other forms of creatine and assess their results.
While there aren't any clinicals to that demonstrate CEE or dicreatine malate is more effective than CM, there also isn't any data to suggest they are ineffective (at this point). My point is if CM isn't working for you what's the big deal about spending $6 on CEE or other creatine types and testing it out? |
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#8 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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Quote:
There is also no studies showing whey does not grow horns on your head. That's not how science works. I agree with you however - and it makes no difference to me - people should try what ever they want. My job is to give them unbiased information based on science and reality vs marking BS put out by companies making claims of how superior (fill in latest wiz bang super form of creatine here) is compared to CM, when there is no data to support the claims. In addition, many of these companies make claims that there is data showing it's false, for example, that CM is poorly absorbed, which is BS. Think about this, if many of the claims being made against CM by these companies are known to be false, why would you trust the other info to be correct? Thus, I try to inform people and educate them, and leave up to them. No matter how much fact, data, and reality I throw at some people, there is always the "I don't care what you say, serum creatine made me huge!" response. |
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#9 |
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Member
Join Date: May 2004
Posts: 3,040
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I agree with a lot of the above. I think the whole area of sports supplementation is rife with marketing copy that has absolutely no science to back it up. The regulatory framework around dietary supplements allows manufacturers to make outrageous claims with zero consequences.
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#10 |
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the one & only
Administrator
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Will, welcome to IM.
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#11 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#12 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#13 | |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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Quote:
Creatine ethyl ester rapidly degrades to creatinine in stomach acid Child R1 and Tallon MJ2 1Department of Life Sciences, Kingston University, Penrhyn Rd, Kingston-upon-Thames, United Kingdom. 2University of Northumbria, Sport Sciences, Northumbria University, Northumberland Building, Newcastle upon Tyne, United Kingdom, DrChild@CR-Technologies.net Creatine ethyl ester (CEE) is a commercially available synthetic creatine that is now widely used in dietary supplements. It comprises of creatine with an ethyl group attached and this molecular configuration is reported to provide several advantages over creatine monohydrate (CM). The Medical Research Institute (CA, USA) claim that the CEE in their product (CE2) provides greater solubility in lipids, leading to improved absorption. Similarly San (San Corporation, CA, USA) claim that the CEE in their product (San CM2 Alpha) avoids the breakdown of creatine to creatinine in stomach acids. Ultimately it is claimed that CEE products provide greater absorption and efficacy than CM. To date, none of these claims have been evaluated by an independent, or university laboratory and no comparative data are available on CEE and CM. This study assessed the availability of creatine from three commercial creatine products during degradation in acidic conditions similar to those that occur in the stomach. They comprised of two products containing CEE (San CM2 Alpha and CE2) and commercially available CM (CreapureÒ). An independent laboratory, using testing guidelines recommended by the United States Pharmacopeia (USP), performed the analysis. Each product was incubated in 900ml of pH 1 HCL at 37± 1oC and samples where drawn at 5, 30 and 120 minutes. Creatine availability was assessed by immediately assaying for free creatine, CEE and the creatine breakdown product creatinine, using HPLC (UV) After 30 minutes incubation only 73% of the initial CEE present was available from CE2, while the amount of CEE available from San CM2 Alpha was even lower at only 62%. In contrast, more than 99% of the creatine remained available from the CM product. These reductions in CEE availability were accompanied by substantial creatinine formation, without the appearance of free creatine. After 120minutes incubation 72% of the CEE was available from CE2 with only 11% available from San CM2 Alpha, while more than 99% of the creatine remained available from CM. CEE is claimed to provide several advantages over CM because of increased solubility and stability. In practice, the addition of the ethyl group to creatine actually reduces acid stability and accelerates its breakdown to creatinine. This substantially reduces creatine availability in its esterified form and as a consequence creatines such as San CM2 and CE2 are inferior to CM as a source of free creatine. |
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#14 |
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Super Moderator
Super Moderator
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I read the studies on this last week. It's seriously made me reconsider my usage of CEE.
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#15 |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#16 |
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Super Moderator
Super Moderator
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Well I have to be honest........All my years of this lifestyle and I never once used CM or CEE until a few weeks ago. So I didn't do much research on CEE until a few weeks ago.
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#17 |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#18 |
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the one & only
Administrator
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the anecdotal evidence on the efficacy of CEE is overwhelming.
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#19 |
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Super Moderator
Super Moderator
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Downloaded it as soon as I saw this thread
Thanks! |
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#20 |
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Super Moderator
Super Moderator
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#21 |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#22 |
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Registered User
Join Date: Mar 2005
Location: MA
Posts: 688
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#23 |
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Super Moderator
Super Moderator
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I think healthy kidneys is the key right there
I have enough health issues and organs that don't want to function properly and I don't want my kidneys or the list of "needs repair" as well. ![]() |
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#24 |
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the one & only
Administrator
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as long as you're drinking adequate water there should not be any issues with creatine and your kidneys, unless you currently have a kidney problem.
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