How a 5'5" Basketball Player Trained Himself to Dunk
theatlantic.com
theatlantic.com
Very inspirational.
Powerlifting is a necessity as most competent coaches will make sure one can squat around 1.5x bodyweight or more before doing plyo training (drop jumps), which is hugely effective for vertical improvements, but highly stressful on the joints, tendons, and ligaments.
Here's a video of an Olympian shot-putter training, including 'jumping with weights': http://www.youtube.com/watch?v=frFVhwIy_PU
Not to say that strong tendons and joints are important, nor that the article mentions powerlifting, which is not concerned with power.
And so, I needed a vertical leap of 3 feet to grab the ring. The happiest day of my basketballing life was after some weeks of pumping iron (leg weights), I did leap and grab that ring - once. It was such a thrill.
That was way back in college. I wish I'd gone all the way like Brandon did. But hey, I'm only 50 now, and still playing basketball. I'm inspired. I think I'm going to go for it again. ;)
"...and his first dunk story at 5'2 at the age of 13..."
If you lack natural coordination and explosiveness, at 5'5" you'll never dunk a basketball no matter how hard you train.
However, you may have the ability to code explosively in the same way that one is able to shake another out of their shoes with a crossover dribble; that, or train your mind to do so. The former will arguably be the superior "player" as they likely started coding at age 8, drawn to it without knowing why, and the latter likely came late to the game (case here).
Participants jumped higher (0.086 m) in the arm swing
compared to the no-arm swing condition ...
--- http://www.ncbi.nlm.nih.gov/pubmed/15519601