Those g numbers are insane. I would appreciate an FFT instead of a time-series graph but this is far beyond even a rocket launch.
There is a huge difference between a prolonged G-force (like a rocket launch or a fighter jet turning) and an instant reading (helmet hitting ice). A prolonged G-force in human performance studies in aviation is defined as 1 second or longer. A reading of more than +10g in the Z-axis will black out almost all humans. While instant readings as high as 200g have been measured in a survivable car crash. Falling from 1m…
It does though, if you fall directly on your head from that height. Even with a helmet that seems dangerous.