As Kelly has said in some of the videos and on the Joe Rogan podcast, tissue failure is rarely the result of a catastrophic event, but rather the sum total result of billions of repetitions over a period of time.  Meaning, that you are not moving correctly, or good enough to avoid that tissue fault.  But that is still not the right perspective to have.  When I started having back pain in that area I adapted that mindset into everything, meaning everything I do day to day is contributing to the tissue injury, from how I walk, run, work and so on.  Am I walking with right form using the right shoes…  Am I sitting to much at the office.  Is my spine in proper alignment all the time.  When you couple this with the tunnel approach(impossible to recover from bad form under load when you start out with bad form) you can start making a bunch of little tweaks here and there and then back problems and other issues go away.  The things I have found invaluable in my journey is a foam roller, lacross balls, a car orbital polisher, voodoo wraps, and a good chiropracter willing to actually talk and work with me though my dysfunctions.