It measures more than 1.90m and weighs more than 150kg. It has 30% fat mass.
I challenge you to put that weight on your back and move on your haunches like a sumo wrestler does. Then I challenge you to also try to lift a 150kg sack of sand. Then imagine that that sandbag at the same time is trying to pull you to the ground.
Would you really know how to move if you did not have a total lean mass (removing fat) of 100 kilazos?