My understanding: endos tend towards fat and ectos towards skinny while mesos are in between. The latter seem to make up most muscle men and also appear to gain easier.
I often hear Frank Zane brought up when it comes to ectomorphic builders. But, while he’s extremely well-defined, he never looked huge, and it took him a great long while to get where he got.
How much does one’s genes have to do with how effective their workout is and how fast they gain? There are plenty of success stories, but so many of them are about mesomorphs, I’ve noticed.
I’m an ectomorph and expect progress to come harder for me than it would for the typical “jock” body type.
What opinions do you guys have on the relationship between genetics and progress?