An example would be a program where you are required to do 4 sets of 12 reps of biceps curls. (fitnessandpower.com)
Then I do 4 variations of biceps curls, but every training day is different. (dempseyfit.com)
This provides you with a unique opportunity to perform the full range of motion, with increased recruitment of muscle biceps muscle fibers at the top portion of the curl. (fitnessandpower.com)