Your strength largely depends on what your on and most important how heavy you are. Pro bodybuilders have found a way through trial and error to achieve extreme muscular size, there is also a way to create an athletic freakshow and to get very strong. You do realize people use equipoise to make billion dollar raise horses faster. Please go outside and measure your vertical leap right now, and come back to me after 900mg of equipoise for a year. Watch what happens to those numbers.
I was on my heaviest cycle in May, At 220 plus, I could close grip bench press 365lbs with my hands 4 inches apart. and run the 100 meter in 10.6. this was not trained for, it was a result of gear use. Certain steroids (Testosterone only I believe) increases the size of motor neurons which is pretty much the route of explosive power. It also has the ability to change the shape, appearance and even number of muscle fibers.
For any of you ex rugby/football/ athletes who haven't had their 40 yard dash tested or your vertical jump checked out in 10 years but have taken gear heavily and continued to weight train using compound movements, I'd check it out. You just might freak yourself out.