(01-23-2019 04:42 PM)ruowls Wrote:  

(01-23-2019 04:29 PM)Almadenmike Wrote:  

(01-23-2019 04:09 PM)ruowls Wrote:  The studies are all over the place.
Here are a couple results.

1) 5 year period for rate/1000 Athlete Exposures:
Female rate-Male rate Sport
6.3-3.4 Soccer
6.0-3.9 Basketball
3.3-0.5 Softball/baseball
0.3-0.5 Swimming and Diving

2) Rate/1000 AEs
Football 64
Hockey 54
Girls Soccer 33
Boys Lacrosse 40
Girls Lacrosse 31
Boys Soccer 19
Wrestling 22
Girls Basketball 18.6
Girls Softball 16
Boys Basketball 16
Field Hockey 22
Cheerleading 11
Girls Volleyball 6
Baseball 4.6
Gymnastics 7

3) A pooled analysis of 23 previously published studies from the British Journal of Sports Medicine from Nov. 2015.
Relative Risk/1000 AEs with the average for sport participation at 0.23.
Rugby 4.18
Ice Hockey 1.2
American Football 0.53
Volleyball 0.03
Baseball 0.06
Cheerleading 0.07

It is interesting that in this article, rugby was by far the worst sport with American football only double the relative risk from the average.
So according to this data, rugby is 8 times worse than football. And yet, on this board, football should be changed to be more like rugby.

Are there any similar studies that include Aussie-Rules Football? They wear no head protection and run around at pretty high speeds. But I believe they also have rules against certain types of tackles, which might reduce their concussion rates.

A quick check shows this:

Australian Rugby:
3.9 concussions/1000 hours for professional level
1.2/1000 hours amateur level

Australian Rules Football
5-6/1000 hours

Note it is reported differently with rate per 1000 hours played as opposed to rate per 1000 AEs (exposure is any time spent in practice or game counting as an exposure regardless of time).