I’m a fan of Kettlebells myself, but there’s nothing magic about then. One of the things that really gets me is when people (like the article you linked) seem to ascribe the benefits of the movements that are commonly done with KBs to the implements themselves.
You can perform the vast majority of kettebell movements with a dumbell just fine, and the DB is substantially less expensive. Yes – the fact that the center of gravity on the KB is below your hand means it involves slightly more stabilization, and yet they’re a fun toy. I have a few of them and really like them, but they’re not magic. I actually wrote a bit of a rant recently about this very topic.
I think the real progress people are seeing is from the incorporation of compound, ballistic movements with a significant stabilization component.
This is a trend I really like, it’s also how they should have been training all along if thy were paying attention, and how a lot of serious athletes trained before the KB craze.
