Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
Grape Seed Extract helps prevent swollen legs
Men and women who sit or stand all day are often bothered by swollen legs. Their lack of movement impairs the function of their blood vessels, and their legs swell, feel painful and tired. Moreover, there is a greater chance of varicose veins. Japanese researchers have discovered that supplements with Grape Seed Extract can help.
This dose may seem high. Most supplements with Grape Seed Extract contain 50 mg of extract per capsule, so the women took 8 capsules. Nevertheless, this is only 45 percent of the dose that still is guaranteed to be safe, according to Kikkoman's toxicologists. [Food Chem Toxicol. 2002 May;40(5):599-607.]
The researchers had the women sit on a chair and measured the volume of their left legs every 2 hours. They did this twice: once on a day when the women had taken Grape Seed Extract and again on a day when they had been given a placebo.
On the placebo day, the volume of the lower leg increased by 46 cubic cm. On the Grape Seed Extract day, this was only 14 cubic cm. The heavy dose of Grape Seed Extract reduced swelling in the legs by 70 percent. The effect was statistically significant.
In the placebo group, the volume of the lower left leg increased to 62 cubic cm after 6 hours of sitting. In the supplement group, this was 47 cubic cm, which is 40 percent less. That effect was also statistically significant.