[quote]Professor X wrote:
Professor X wrote:
Vascularity is an issue of muscle size, leanness, and genetics. Your blood vessels grow to match the needs of the surrounding tissue. Someone with 21" muscular arms will no doubt need more blood supply than some guy with 15" arms. Someone in contest shape will no doubt see more veins than someone bulked up in the off season. Lastly, some people simply show more veins subcutaneously than others.
Do you feel that tng type has anything to do with it?
Last winter while I was tng very heavy I finally started seeing networks of veins on my chest/anterior delts.
Now that I’m leaner (I actually maintained bodywieght during the cut,so don’t you worry Prof) those veins are still visible but don’t really “pop out” of the skin, even while very pumped.
On high rep days my arms get very vascular, much more so now that I’m leaner, but chest/delts? Same as when they were covered in more fat. I still do maintain one very heavy fullbody workout/week in addition to the mid/high rep days.
What the hell does “TNG” mean?
Beyond that, this is BLOOD we are talking about. Yes, getting a pump in your muscles causes veins to stand out more because there is more BLOOD in the area.[/quote]
That is Wrong
Like yourself, most people think (and are taught) that the pumped feeling you get while training is a result of increased blood flow into the muscle. This is wrong.
The full and tight feeling, the pump, after a set or workout is not the result of increased blood flow into the muscle. This pump is actually the result of “trapped” blood within the muscle. When a muscle contracts the actual fiber diameter increases as it shortens. This muscle contraction exerts an “inward” force upon itself. This inward force temporarily shuts off vascular activity that blocks blood flow out of the particular muscle group being trained.
When this happens, an increase in blood pressure occurs as an attempt to clear the backed up blood from the congested capillaries and into the maze of interstitial spaces of the muscle cells. As a result of this congestion, a muscular pump prevails.
As you can now see obtaining a muscle pump has nothing to do with increased blood flow into the muscle, but rather a temporary entrapment of blood within the muscle. So you are not increasing the blood flow into the muscle you are decreasing the blood flow out of the muscle while at the same time increasing blood pressure.
This should clearly indicate why a muscle pump has nothing directly to do with muscle growth. This is yet another myth ignorantly propagated by the magazines and gym gurus. Like many things in weight training and bodybuilding, it seems right but it’s not.
K of K