India, July 11 -- Faster run-up, fluid cross-step, stronger block and keeping the body from leaning left -- these are some of the key technical areas that double Olympic medallist Neeraj Chopra is working on with coach Jan Zelezny in his quest for technical perfection. At the heart of his pursuit lies the desire to become a consistent 90m thrower, a distance he finally scaled two months back to put to rest doubts about his ability to go that far.

The act of running with an 800gm spear and hurling it with full might is far more technical and complex than it seems. Raw power doesn't always cut it. There are so many moving parts that even a slight deviation in any one of them can mess up the rhythm and the result. It is, therefore, understa...