Quote Originally Posted by tempest818
Hello wise gurus and shamans of bodybuilding. Out of curiosity....say you had a workout right? Do your muscles rebuild/strengthen solely on the nutrition given AFTER the workout (or the 24-48 time frame of muscle protein synthesis)? More specifically, do they repair themselves only with proteins? I am trying to understand how some of my new-lifter friends can get so strong and big considering they dont care for diet and dont make sure they get adequate protein after lifting or even in the hours of MPS. I understand if they were eating in excess in the first place...but how are noob gains even possible on a deficit? Sorry for the annoying questions, i just really like to break everything down to the science!
If they are new, their CNS is adapting and those gains tend to be the most noticeable. The tough gains are after neurological adaptations when you really have to be an animal and push past plateaus and make gains.

Proteins, amino acids to be specific, do the repairing of muscle, so make sure you are taking in adequate amounts of BCAAs. They repair as long as needed, with an increased uptake after training and in the 24 hour window following training. But again, they are always repairing and creating new and improved neuromuscular connections if training was adequate.