justinyii asked:

a thought occured to me that some people are stronger than others with out having bigger muscles and that some people have higher endurance (muscle fatigue) levles than others as well without having bigger muscles.

Could this be a result of higher muscle density within a smaller muscle, like more muscle fibres in that given muscle compacted in really tight. (if there even is a thing such as muscle density)

and would low intesity/ high volume workouts give this result?

I know that it is not effecitve for muscle growth or something that i would do, but it is just something that intreaged me.