Very interesting study, if small. My two questions about it. 1) What's the plateau state and the initial fitness level/muscle density? Many weight-lifters ha

Very interesting study, if small. My two questions about it. 1) What's the plateau state and the initial fitness level/muscle density? Many weight-lifters have experienced that after a certain point, they start to plateau and don't gain further muscle density. Is the plateau point roughly the same for the two styles? 2) How does that correlate to strength? It's been hypothesized (but I'm not sure if it's been proven) that strength is a combination of muscle density and motor coordination (i.e. neural connections to allow muscle fibers to fire simultaneously), and that lifting heavy actually leads to additional nerve ends that help coordinate those things (or something like that, at least). So I'd be interested to know how the different lifting programs affected both maximum lifts and the number of reps that can be performed at, say, 70% of that max.