Low voltages will not cause the muscle damage
but can hurt depending upon the electrical current. Above 2 volts or so, with a current source (Norton equivalent), the pH also
changes, in some cases leading to additional pain.
You dont want to know more, but could ask the Senator.
Source, please...
That would mean everyone hit by a spark plug would be screwed. Thankfully that is not the case. Is there a current flow and time of exposure associated with the above comments.