Which chest exercise do you think is better: bench press or chest dips?

I don't see how you could possibly have arrived at that conclusion by anything I wrote. Perhaps you could explain.

 

you wrote:

so as long as an exercise activates pec major and/or pec minor the result will be the same? or did you mean something else?

 

A muscle group includes more than a single muscle fiber. Fibers are either fired or they are not. Some exercises fire more fibers of a given muscle group than other exercises for a given level of exercise intensity.

Regarding the all-or-nothing recruitment of muscle fibers:

https://www.verywellmind.com/what-is-the-all-or-none-law-2794808

 

that's why the different emg activity for different exercises, and not

 

Different number of fibers recruited? Again, I don't know; above my pay grade. Evidently yours as well.

In any event, did you read the part about how many researchers interpret the results incorrectly in the links I provided? I'm guessing the author of the piece you linked is not a scientist. Just saying.

 

obviously, if the "all-or-nothing recruitment of muscle fibers" theory is correct

 

Then why ask the question? Oh, and the all-or-nothing thing is a law, not a theory. I don't think the matter is in dispute.

 

You where questioning the lower emg numbers for lower weights. Looks like higher weight recruits more muscle fibers

 

Did you read my post? Were all sets taken to failure for comparative purposes? I don't recall the author mentioning it. Perhaps I missed it. And he could have kept the lower weight exercises at a reasonable rep range to failure by doing them slower to compensate. Frankly, I'm not sure what his study accomplished. Are you?

 

he doesn't mention it. But more weight should make the muscle work harder, no?

umm, it measured maximal voluntary contraction of muscles for various exercises