Low-post play is very physically demanding, involves jockeying for position, dribbling after catching the ball to squeeze inside, and putting in full effort to avoid the interference of the defense, and sometimes even facing double-team distractions.
After going through the process, it's much more exhausting than pick-and-roll, catching and shooting from the perimeter, or fast-break layups. Excellent interior players in the League average about 10-15 post-up plays per game.
If the post-ups and one-on-one plays exceed 15 times, the player's efficiency begins to decline due to the effect of stamina. Around 20 attempts is about the efficiency limit, beyond which the shooting percentage starts to plunge sharply—Chamberlain during the regular season being the exception.
Jabbar, during his peak, would attempt about 15 to 18 hook shots from the low post per game, making him the strongest low-post offensive player in the League.