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Every strength routine includes rest days between workouts, so that the natural processes of tissue repair and muscle growth are allowed.
I guess this process of repair and growth happens mostly between the first and maybe the fourth day after a strength workout. I am curious about any study that quantifies the amount of muscle tissue added as a function of time after a strength workout. Is there any such study?
Coming up with a single function for muscle tissue repair with respect to time is literally impossible. Each individual is far too different for any one function to represent us all. It's the whole "one size does NOT fit all" problem that holds for pretty much any physiological issue.
That said, there is a study that suggests that ingesting protein just before sleep causes a rapid rise in circulating amino acids during sleep. Perhaps it is less a function of time, and more a function of your body's state of rest?
