Some individuals in the thread object. A less convincing argument is: they show me a picture of a muscular stout man who uses steroids, and then tell me this person cannot be agile. How do they know this person is not agile?
People who look musclebound normally do things on their free time like, play football, do boxing, go mountain climbing, waterskiing, play racketball, and so on. I am confident, these bodybuilders have an agility that is much higher than that of an average person. The fact that they can walk on their hands, pull up their own bodyweight, spring up ropes, and so on, already makes them far more agile than the average person. If there was a bodybuilder who was not generally athletic, that would seem really unusual.