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Originally Posted by big pete looking at that EMG.
they rate tricep pushdowns as being far superior to narrow grip bench.
side raises to be better than shoulder presses
and leg extensions to be ALMOST as good as sqauts.
please tell me that cant be right?? going by this can electrical activity be linked to mass gain? |
Higher EMG readings = More muscle activation which in turn = more growth. The more muscle fibres which are stimulated the better, which is why sets are taken to exhaustion, exhaustion being all of fibres activated until there are none left.
Higher EMG readings also indicated a better isolation of that muscle.
Flaws of EMG would be, electrode placement, muscle size (A larger muscle emits a bigger signal) and cross talk from other muscles. They are not bollox if performed correctly.
Remember that the EMG is just saying that the Rectus Femoris is activated almost as much in leg extension as squats, this doesn't make it as good an exercise unless the RF is the muscle you are hoping to develope. Squats are superior in that they activate a lot of other muscles aswell, abs, hams, glutes, erector spinae etc and raise test and GH levels. Leg extensions can't possibly compare to that no. The EMG readings are very helpful if you are trying to isolate a particular muscle, useful especially for large ones such as pec major or lat.
HTH
SD