psilo said:I think you should avoid saying HST is simple and obvious. The principles behind HST, while simple, have complex roots in a wide array of scientific studies and journals. Certainly the HST principles aren't obvious or there would never have been any reason to complete the research that backs it up. While it is a great program, it is based on scientific studies that inherently are complex.
Furthermore, while strategic deconditioning and progressive load are the major HST principles, there are many much more subtle ideas behind HST that must be understood to achieve its full benefit.
For instance, what length of time should the concentric and eccentric phases of a lift occupy? What role does increasing or decreasing overall volume have in growth? Does the growth from HST improve the potential for future strength gains (i.e. will westside or 5x5 be even more effective in building strength after a cycle or two of HST?). Why does zigzagging or overlapping seem to yield more growth than a linear progression even though this doesn't seem to meld with progressive load purism?
Yes, you are correct. The research behind the principles is immensely complicated, and that's why it took a guy with a masters in physiology to interpret it
That being said the principles are pretty simple. That's part of the elegance of it, that the results of so much research can be summarized so succintly
The other stuff you mentioned: rep tempo, volume, zig-zagging....
these are all program design elements. Keep in mind, HST the program is designed to be easy to follow without having to really know anything. People are used to being told, "do this" and so that's what that is, a formula that anybody can apply and get decent results
I wouldn't say those things tie into the principles that much, those are more concerns over application of the principles