I dont know about rapidly resuming the activity that caused the injury, but I totally agree that stopping all activity to exclusively rest and recover is terrible. You have to try to walk a bit at the very least.
I participated in a chronic pain study where I personally learned that there are times, much more often than not, that one should not second-guess their joint that is having a flare-up and continue to walk a similar amount each day. I can't overstate how empowering it is to not be in a thought loop on a case by case basis and trust the learned system.
Increased blood flow, released endorphins, usage of muscle, flexing of connective tissues and operation of joints often addresses the issue (if it is not an acute injury that really does need our body's regenerative abilities). We evolved to walk.
Physical activity -- muscle movement -- also increases the flow of interstitial fluid back to the circulatory system. This is how the body "takes out the trash" which is essential to the healing process.
I have a serious medical condition. I sometimes go for a short walk when I feel awful because I know from long experience that doing so frequently makes me feel better and I've gotten good at telling when I feel awful in a way that will likely be helped by taking a walk.
This connects the dots even further! I had a time where I went on a walk and thought it would be an extremely short one. After I thought I had been hitting the wall and I was sure I was making it worse, my joint started feeling much better. I extended the walk and returned feeling like the flare-up I had been experiencing before the walk had rapidly dissipated. That was a defining learning moment for me.
I participated in a chronic pain study where I personally learned that there are times, much more often than not, that one should not second-guess their joint that is having a flare-up and continue to walk a similar amount each day. I can't overstate how empowering it is to not be in a thought loop on a case by case basis and trust the learned system.
Increased blood flow, released endorphins, usage of muscle, flexing of connective tissues and operation of joints often addresses the issue (if it is not an acute injury that really does need our body's regenerative abilities). We evolved to walk.