My dokter, twice a week during recovery therapy after my accident 7 weeks ago ?
Its 90% of what we talk about when i have to lie on my stomache for 15 minutes, motionless
Every non skeletal back injury in an athlete heals under 4 weeks.
Vertebra damage heals in under 4 weeks when not broken, 8 weeks or something when it is broken. (like Neymar)
Lumbar discus injuries are the only thing that takes significantly longer to heal, because of the unique healing process. That takes 4-9 months depending on severity.