Begin by doing seven partial reps in the lower range of motion, then perform seven reps in the upper range of motion, followed by seven final reps with full range of motion. (fitnessandpower.com)
Isometric contractions: to really fire up your CNS, at the final rep of your final set hold the weight in the contracted position for as long as you can. (fitnessandpower.com)
At the final rep, do an isometric hold for as long as you can, then finish it off with a very slow negative rep. (fitnessandpower.com)