The great thing about this being an Olympic year is that the media can’t help itself but get inside of the gym and take a look at some of the pro’s workouts.
Looks like Allyson has been spending some time doing quite a bit of resisted and bodyweight jump work but dear lord, some of this looks horribly time wasting. I wish it would say what time of year this was filmed.
https://sports.yahoo.com/olympics/features/elite-athlete-workouts/allyson-felix/
Food for thought