Enduro Rush     The reason that that is such a mass builder is because on this exercise you're within the same function as you'll be seated on a preacher curl bench but the gain right here is that there may be no strain on any JOINT. everything hangs free which means you could use large tonnage without worry of straining some thing in the shoulder elbow or wrist joints. you can curl notably more weight in this position than sitting or status. attempt it and you'll see.   http://jackedmuscleextremeadvice.com/enduro-rush/