When the going gets tough, the tough get googling. I found this article, which led me to Concept 10 10. I found a similar franchise to Concept 10 10 called the SuperSlow Zone. I found information about a research study on super slow resistance training. I found this Wikipedia article.
I already take one very effective strength training class per week, an interval class with a very tough instructor. I have been seeing gains in my strength and muscle firmness just from that one workout each week. I'd like to add a second strength workout, which is the cause for all this mad Googling.
I'm not likely to find a superslow gym near here, though if I had the cash, I would start a franchise in an upscale area, because it sounds like a gold mine. Given my budget and my location, those kinds of things are not headed my way anytime soon, and even if they were, I couldn't afford it. Instead, I ordered Power of 10: The Once-A-Week Slow Motion Fitness Revolution, which the Wikipedia article referenced above suggested as further reading. I got a used copy for 65 cents, plus $3.99 shipping. I'm going to try adding a superslow strength workout midweek, along with my other training. I'll keep you posted!