¿Por que el estímulo va a ser mayor? Si la diferencia en el peso levantado se da por la acción de músculos sinergistas y por otro lado la diferencia entre usar mancuernas y barras esta en el equilibrio si al press declinado lo hiciéramos con barra levantaríamos más peso que con el press plano.
Tambien tiene lógica lo que dices. Yo recordaba algo que leí en otro foro:
"Yeah, EMGs are a little funny. They're real, and the numbers matter, but not necessarily for us, those who wish to make those muscles bigger or stronger.
You have to remember what's being measured: electrical impulses. That's it. Has nothing to do with hypertrophy (so applicability to bodybuilding is iffy), and the electrode thingies are placed in single spots over those muscles. Well, anyone who understands how motor units operate, and that only as many will respond as necessary for the resistance, can see that a single sensor isn't gonna work all that well.
After all, I can get all warmed up and then:
1. attach the EMG thingies to all the muscles in my upper arm
2. pick up a can of mushroom soup
3. throw it as far as I can
That will send the EMG readings through the roof. Every motor unit will fire, and they'll all give 100% ("all or nothing" principle). But the value of my soup throw for hypertrophy is less than rock solid. You know?
So my educated guess is that the values you showed below would vary immensely with relative load (measuring during reps at 1RMs vs. 10RMs).
It's funny. I posted that same report (or something much like it) about a year ago - started the exact same discussion. Goes in cycles. "
Y otro:
"The data in the weblink is extremely controversial as are electromyography recordings (from personal experience). The data is analysed in a slightly odd way as well as using ANOVA (analysis of variance) to get the greatest percent IEMG max doesn't make much sense. And REMEMBER the results are only over a period of one second!!!
Example of electromyography problems:-
Analysis of muscle force distribution in the shoulder by means of electromyography during motion tasks is hampered by artificial and non-linear amplitude modulation and is often limited to downward directed external forces. This application of EMG is therefore inadequate and insufficient for the validation of shoulder model simulations.
Basically, you can't believe the EMG as there are too many other factors which cause "noise" over the EMG and limit the reading to only one vector. There has been work at the end of last year to model muscle forces using 3-D planar forces..... when this is fully researched it should provide a better model for exercise induced muscle stimulation."
