“Normal workouts are hard enough, but if thighs happen to be a weak point in your physique, you have to be prepared to push yourself even more. This involves a mental effort almost as much as a physical one…This means forcing yourself to break down any inhibition or barrier."
Arnold found that traditional training techniques weren’t enough to bring up his legs. At various times especially before a competition he used partial reps, drop sets, supersets, and pre-exhausting techniques to make his thighs work overtime and bring out their muscular detail.