Originally Posted by dealt_with
Nonsense. The advances made in understanding about the properties of tendons, the neuromuscular system, how the body adapts and how gene expression is altered through different types of training has exploded in recent times. And when you understand something you can manipulate it.
Yes a weight will always be a weight but it's about what you do with it. Little advances make big differences, the world isn't going to be reinvented.
I think you're getting the fitness industry mixed up with the sports science/research industry.
One thing that has not changed, to my knowledge, is Newtons Law. Its understanding that, and the consequences it has, and what it implies to movement.