Most of the studies that I’ve seen either seem to be looking at high-acceleration impacts or are trying to quantify impacts received in “daily life”. I have repeated impacts flagged in my head as “result unknown”—I haven’t come across anything that I can remember that would give legit thresholds for how hard a repeated impact has to be before it would cause damage (other than the 10g figure noted above). People seem to agree that repeated impacts have the capacity for great harm, and I remember seeing that people with a certain gene appeared to be more prone to symptoms if subjected to repeated impacts, but that’s pretty much all I remember. Let me know if you find anything.
Most of the studies that I’ve seen either seem to be looking at high-acceleration impacts or are trying to quantify impacts received in “daily life”. I have repeated impacts flagged in my head as “result unknown”—I haven’t come across anything that I can remember that would give legit thresholds for how hard a repeated impact has to be before it would cause damage (other than the 10g figure noted above). People seem to agree that repeated impacts have the capacity for great harm, and I remember seeing that people with a certain gene appeared to be more prone to symptoms if subjected to repeated impacts, but that’s pretty much all I remember. Let me know if you find anything.