It’s Newtons 2nd law of motion. Force = mass x acceleration. Acceleration = change in velocity/time. The foam in an NFL/cycling/football helmet compresses to some extent on impact and slightly increases the time taken for the head to change from being in motion to being stationary. This reduces...
Given the test has high specificity (low risk of false positive) but relatively lower sensitivity (ability to identify true positives) it is much more likely they McKenna’s negative test results were the false ones.
https://www.bmj.com/content/bmj/369/bmj.m1808.full.pdf
Long time lurker on the board but my debut post. Have steered clear so far as I feel my few games in the back pocket for the Castlefield U12s probably leave me a bit underqualified to comment!
Haven’t read the whole thread but suspect I may be the first not to have HFC No. 1. I hope you’ll...
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