@Isnogud_in r/Sprinting • Recommends
On “How long does it take to lose your progress youve made by training if you strained your hamstring”
The big thing about hamstring strains is how likely re-injury is. Usually the re-injury is quite a bit worse. Take the hit, rehab properly! and take a gradual approach to go back to performance.
My intuition is that the progress is lost once the strain occurs. But you need to keep training to build it up again. And make your hammies get used to the load again.
I found this rehab program to be quite good: link to this video