Are you just taking this sample from a random time you looked at someone in the gym? There's a very good chance that these "bulked up" guys were near the end of their workout or have already heavily fatigued their back…
Are you just taking this sample from a random time you looked at someone in the gym? There's a very good chance that these "bulked up" guys were near the end of their workout or have already heavily fatigued their back…