Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
Red Blood Cell Width Distribution: another way in which resistance training extends life expectancy
The size of your red blood cells says something about your health. If they are all about the same size then the chance that you'll develop fatal cardiovascular disease is pretty small. How come this happens? We don't know. Sports scientists at the University of Mississippi in the US have discovered that resistance training keeps red blood cells pretty much an even size. And how come this happens? We don't know this either.
Red Blood Cell Width Distribution
About five years ago American cardiologists at Wayne State University discovered that people with a relatively small RDW are noticeably less likely to die of cardiovascular disease than people with a high RDW. [Circulation. 2011; 124: A12295.] The Red Blood Cell Width Distribution was a stronger factor than the concentration of inflammatory protein C-Reactive Protein [CRP].
Every 2 workouts per week reduced the chance of a high RDW by 11 percent. In this group, at least. The researchers suspect that the workouts that fitness fanatics and bodybuilders do have a much stronger effect – as most of the participants in this study did not train hard. Their lean body mass was on average only a miserable 500 g more than average.
"Further studies are needed to evaluate whether Red Blood Cell Width Distribution does indeed mediate the health benefits related to muscle strengthening activities."