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"Ahh, who doesn&amp;#x27;t want super-strong biceps...like Madonna&amp;#x27;s, maybe? A new study from the American Council of Exercise has found that there might be one move that&amp;#x27;s head and shoulders (heh) above all others to get them... ...the concentration curl. ACE worked with the University of Wisconsin to figure out which of eight common bicep exercises might be the best&amp;amp;#8212;the cable curl, barbell curl, concentration curl, chin-up, EZ curl, incline curl, or preacher curl. They recruited 16 men and women who had some prior weightlifting experience (to ensure proper performance), and found that, after doing each exercise, the concentration curl came out on top&amp;amp;#8212;meaning there was significantly higher bicep-muscle activation than any other exercise. According to one of the study&amp;#x27;s authors, John P. Porcari, Ph.D.: &amp;quot;I think the reason is that you&amp;amp;#8217;re really isolating the biceps muscle more so than in any of the other exercises. Some of the other exercises called into play the anterior deltoid or the front of your shoulder more, and for a lot of those, it&amp;amp;#8217;s almost natural to just swing your whole arm or shoulder forward to stabilize before you lift.&amp;quot; In case you were curious what a concentration curl is, here&amp;#x27;s a pic&amp;amp;#8212;and don&amp;#x27;t skip out on this how-to video, either, in order to do it correctly and not hurt yourself. Do you ever perform concentration curls? What are your favorite arm workouts?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.glamour.com/health-fitness/blogs/vitamin-g/2014/07/best-arm-toning-workout>