Click Image To Visit SiteWe know that high intensity muscle overload is the key to building new muscle. But how do you know if today’s chest exercise really has a higher intensity than last week’s chest exercise? If you train the way most people do, you can’t know for sure. The same is true for every major muscle group of your body.

But there is a way. The Power Factor number allows you to see each muscle’s intensity. The Power Index number allows you to see how far you went at that intensity. These two measurements, used together properly like… Read more…