Me and my friend are debating about if it's easier or harder for a light person or a heavy person to be able to do a pull up, provided they are both begineers.
My arguement is that, while it's easier for heavier people to lift heavier weight at beginning (since muscle scales with body weight), it would take much longer for the person to reach the strength required for them to realize their full pull up potential than a skinny person.
While, my friend argues the opposite saying that people who are heavier progress faster, and hence would outdo, in time, a light person even while they have less weight to pull up in total.
So, what does the studies say? Does people gain more muscle per time intvreal when they are high body weight or low assuming maintenance caloeirs?