Dumbbell Concentration Curl February 18, 2008 by Cathe Friedrich Lorraine performs a dumbbell concentration curl during today’s rehearsal of STS Meso #1 Categories: Behind The Scenes, Blog, Rehearsals, STSTags: cathe, dumbbell concentration curl, exercise dvds, fitness dvds, rehearsal, STS, weightlifting dvd, workout dvds Leave a Comment Related PostsBeyond the Burn: Understanding the Science of Lactic Acid and Muscle FatigueMay 26, 20245 Aromatic Herbs with Surprising Health BenefitsJuly 23, 2023Low-Impact Workouts – Some people confuse “impact” with “intensity.”March 4, 2013