Side laterals is a brilliant exercise which is performed in a bad way
People think by using heavier weights they are gonna get bigger shoulders or maybe it's an ego thing showing off to their gym bro's. Well it's stupid.
The work out is called side lateral for gods sake! So why do some people at the same time work their lower back, buttocks, calf muscles and hamstrings???
The movement has to be controlled and your back stable. if you have to swing like a monkey then the weight is too heavy bro.