This is a superset, so two exercises are done back-to-back with minimal rest. The first exercise is a major lift done with a partial range of motion and the second is an isolation exercise. How you do your partial reps is important. Keep the target muscle under tension long enough, so perform the partial reps in a "no-acceleration" style. Try to maintain the same fairly slow speed during the whole range of motion, focusing on keeping the tension on the target muscle. It should take you about the same time to complete one partial rep as it would a full rep. Do 8-10 reps on both the partials and the isolation exercise. – Christian Thibaudeau
