Python and Co. Journal

[python023]

@gciriani

Actually this range is not my recommendation, but it comes straight out of EMS research. The frequencies between 75 Hz and 100 Hz are those that progressively recruit more and more fast-twitch fibers of type IIb into tetany. So when you start training for maximum force you would start at 75 Hz, and then after a couple of weeks you would move up to 80, 85 Hz and so on, up to 100Hz.
I see the unit is a IF-7500; besides the limitation in pulse width, you do not have a dial telling you the current level. So you will never know your real mA current intensity, until you graduate to a more serious unit. The specifications in the site you gave me are not clear, but it appears that the unit does not deliver the 100 mA promised. I find difficult to believe that the level 6 you have reached corresponds to 75 mA (if you do the proportion, 6 * 100 / 8 = 75). The manual says that the unit delivers 100 mA under a 500 Ohm load, but actually upper-leg muscles represent a load between 2000 and 3000 ohms, so the real mA output would be 1/4th to 1/6th less than what you’d think.

Interesting. And what about hertz above 100hz? What effect does such a setting create? Regardless of the actual mA, we can certainly feel the contraction!