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 PostsDoes Fish Oil Improve Brain Health?January 5, 2020One Small Change that Can Improve Performance with HIIT TrainingJune 23, 2019Cathe’s September RotationSeptember 3, 2010