beeyootiful mechanics. he bursts, long-strided in acceleration. max efficiency is his weapon to capture big mo, and then channel it into the dunk vector.
now, aboot some of those pics with him training just any old place outside, well, someone should explain to mr cranky/incredulous here at the thread, that this is a postcard from the real world, ie kids everywhere jumping stairs, onto tables, pulling an old tire with one leg, then the other, balancing/lifting/etc a cinderblock, a rock, or anything else handy, filling gallon jugs with water (8 lb weights!), and so on and so on. the wealthier kids just do it in 'weight rooms.' or on the slopes, as a steady diet of skiing can turn ur legs into springs. biking hills is another 'no special equipment needed' trick to up ur hops ability. even if just a junkyard freebie, it doesn't matter, cuz winning the tour de france isn't the goal, just working the legs is. heck, if there's a long/wide set of stairs nearby, you can make ur quads, hammies, and calves sing by riding up and down them. hard task. expect a bruise or two. on the udder hand, no cost.
'cross-training.'
didya hear the one aboot the boxer who trained by punching sides of beef?