Bolt 9.69 and the New Limits of Human Performance

Thanks PJ, you’ve done it again :). I like this kind of work and it’s always interesting to see the target times and intervals between reps/sets.

Was that 12mins rest between sets on the Tuesday session?

Coach seems to be using the 300m as a depletion run, then asking 18-19sec for 180 on the backup rep is putting up the demands considerably. It’s the sort of concept I like to use for 400m development. But I would probably invite the athlete to use a three step roll up for the 180 which would make the target time easier to achieve and take stress off the athlete by not asking him to burst away from a stationary position at the start of the backup run.

The 150 in 16 is icing on the cake, not as severe as 180 in 18-ish, but still requires a high degree of concentration, effort and control - but still dangerous to go for speeds like that in a state of some fatigue when starting from a stationary position. For safety’s sake I’d be rolling those starts on all the backups.