During box squats, I feel like my spine is being compressed somewhat. After I am done with the box squats, I can usually hang on a pullup bar and twist and crack my back like a thousand times.
I work in the 3 - 5 rep range (heavy), and I use a somewhat high bar placement.
I experience no pain, just a feeling like my spine is “compressed”. The feeling ceases after 5-10 minutes and doesn’t interfere with my regular life.
Is this bad?