Send us Fan Mail Two coaches at the sharp end of elite sport pull back the curtain on how speed really gets built. We sit down with Olympic sprint and jumps coach Randy Huntington and Exogen’s Joseph DeSetti to unpack the methods, measurements, and micro-loads that turn good movers into great performers—safely. Randy walks us through his global journey: rebuilding Chinese track and field with timing systems, load-velocity profiling, and individualized technique, then carrying those lessons i...