SETS 20 REPS 10, 9, 8, 7… 7, 8, 9, 10
Select the heaviest dumbbell you can complete 10 curls with. Curl them up to your chest, then rotate your wrists so your palms are facing away from you and lower the weight under control. Rotate your wrists again and go into the next rep. Complete all the reps, then select the next heaviest weight and do nine reps and so on, until you do one rep with the heaviest weight. Then reverse the process, going back down the rack.