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 Anabolic Discussion Board
 Cardiac Muscle
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| Author | Topic: Cardiac Muscle |
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E2 Pro Bodybuilder (Total posts: 1145) |
posted March 04, 2000 12:52 PM
   I'd like to know how steroids effect cardiac muscle. What i'm wondering is do they specifically target skeletal muscle or do they also affect smooth and cardiac muscle. If they don't, then are all they reports of an enlarged heart bullshit. If it does, how does it affect the heart, i thought the heart muscle was very difficult to affect. Please only intelligent answers IP: Logged |
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Deepsquat Pro Bodybuilder (Total posts: 338) |
posted March 04, 2000 04:49 PM
I have only read of one BB haveing an enlarged heart and that was Robby Robinson.Though he claimed it was a genetic enlargement,and his doctor refered to it as Athletes Heart. IP: Logged |
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MattTheSkywalker Pro Bodybuilder (Total posts: 294) |
posted March 04, 2000 05:04 PM
The condition of "athletes heart" is simply due to a growth of the heart in order to meet the demands of increased blood circulation. Many professional athletes have larger hearts than average sedentary people. The larger heart is suited to their athletic lifestyle.....fewer beats are required to move more blood (Higher "stroke volume"). This is mostoften seen in endurance athletes - marathoners and cyclists are known to have resting heart rates as low as 30. Sorry E2, I don't know the answer to your question - I just wanted to clear up a different condition before the point of the thread was lost. Matt IP: Logged |
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Deepsquat Pro Bodybuilder (Total posts: 338) |
posted March 04, 2000 05:33 PM
Who is trying to loose the point of the thread? I knew all of the info pertaining to athletes heart,I was just saying that was what Robby blamed it on,meaning it could have been the roids.Robby had two different episodes of what others thought of as heart attack by the associated symptoms,so word spread through the community that is was caused by the juice.NOWI have lost the point of the thread IP: Logged |
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LV 426 Amateur Bodybuilder (Total posts: 87) |
posted March 04, 2000 05:47 PM
Cardiac Hypertrophy I can only paraphrase World Anabolic Review (so if you have this please forgive) direct connection between steroid consumption and cardio-muscular hypertrophy has not yet been established WAR goes on to quote DR. MAURO G. DI PASUALE from his ANABOLIC STERIODS SIDE EFFECTS basically he says increased training creates an enlarged heart---but how much bigger the gets(from steroid use)is hard to determine IP: Logged |
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bignate73 Pro Bodybuilder (Total posts: 111) |
posted March 04, 2000 07:21 PM
i was only able to find some studies dealing with GH and heart contractability on medscape. The study basically found that GH increased cardiac contractability and efficiency. As for whether AS increase cardiac muscle, no direct info found. Only thing I can attribute to this "enlarged heart" reports is if they are referring to an enlarged left ventricle, which is common in highly trained athletes, thus athletes heart. The only thing I can think of is if there are specific receptors in skeletal muscle that are affected by AS and not found on skeletal and smooth muscle. I doubt this is the case but again, I havent found any info yet. Another factor can be the ratio of fast twitch to slow twitch fibers. Slow twitch fibers dont tend to be too hypertrophic and the heart is primarily an endurance muscle(at least i hope so for my sake). Whereas skeletal muscle can contain quite a bit of fast twitch fibers. Like I said, most of this is just drawing on what I know so far, Ill keep digging because this is an interesting topic. Hope maybe that helps. ------------------ IP: Logged |
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Anabolicum Mister Amateur Bodybuilder (Total posts: 4) |
posted March 04, 2000 09:06 PM
When I was debating whether or not to try AS I had the same questions about how the heart muscle would be affected. I am sure I read something that alleviated my fears (since I've gone ahead with it). I beleive it had something to do with cardiac muscle not having the same receptors as skeletal muscle, and therefore AS don't bind well to cardiac muscle. Even if they do bind, I'm not sure that the genetic message transcribed would be that of protein anabolism. Since I can't remember where I got this information and I don't want to blow smoke in your face, I'll stop here. Don't worry E2. We all know that, deep down, you have a big heart! (ha ha) IP: Logged |
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E2 Pro Bodybuilder (Total posts: 1145) |
posted March 06, 2000 02:39 PM
bumping for maybe some more answers IP: Logged |
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bignate73 Pro Bodybuilder (Total posts: 111) |
posted March 06, 2000 03:37 PM
found out another little tidbit, cardiac muscle doesnt regenerate, like smooth and skeletal. could correlate to e2s theory. ------------------ IP: Logged |
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E2 Pro Bodybuilder (Total posts: 1145) |
posted March 06, 2000 04:34 PM
Sorry bignate that doesn't work, how could you explain open heart surgury? The heart has to regenerate to heal itself, and if it didn't then surgury wouldn't be possible. As well the cells would have to live forever, and no cell in your body can live longer than 7 years. IP: Logged |
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~Goku~ Amateur Bodybuilder (Total posts: 24) |
posted March 06, 2000 08:55 PM
E2 Your correct about the heart regenerating itself. The heart can over a period of two days perform it's own bypass generating new blood vessels to reach areas of the heart that maynot be getting enough oxygenated blood. A problem with heartattack victims is simply in some cases the heart cannot perform the needed bypass fast enough. Also it has been discovered that shooting small holes into the heart with a laser can Hope this is useful info. ~Goku~ IP: Logged |
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