agree 100% despite all the frustrations and hassles it brings. IMO (my opinion is never humble :p), sprinting and specifically the CF model is the best and healthiest way to train. By that I mean
CNS management is crucial
Always question the possibility of injury and ask, is it worth the risk?
Hi / low days and never high - high
Recovery is extremely important and needs to be planned
Run very fast (95%+) over short distances
Weights follow speed and are adjusted to how you feel at the time
You can never run too slow in the recovery sessions but don’t go over 75% of your best over that distance on that surface which should be preferably grass
If in doubt rest
Food is fuel
I know that isn’t everything but if more people who want to get fit and stay healthy followed that they would be better off. Here speaks a 48 year old in great physical condition! 