Cheat sets

Cheat sets is when you use improper technique to lift weights e.g by swinging your back when doing a bicep curl.  If you see people doing cheat sets in the gym you usually think they have bad technique and are doing the exercises all wrong but this is actually a way of lifting heavier weights than you can perform with proper technique to help build and tone your muscles.  Most of the time in gyms when you see people swinging their back to lift a barbell they are doing it all wrong but sometimes people are performing cheat sets.  I do cheat sets for front raises as I find when lifting heavier weights and swinging I really hit the front delts.  When trying to increase my bicep strength I did a lot of cheat sets for bicep curls and better and better I got I started performing bicep curls with the same weight and proper technique.