Runningart2004 wrote:
The median 13 yr old is NOT playing ANY sport in school. I have no idea where ya'll are getting this info. The median 13 yr old does ZERO physical activity and is probably playing video games or scrolling on his phone.
Granted, the median 30 yr old is not much better but testosterone is KING and the 30 yr old still has a lot of it. 30yr old by a mile in any physical event.
A more interesting comparison would be the median 13yr old boy v 13yr old girl. Physically, they can be very similar at this age unless they are training or playing a sport.
Alan
Median 13 year old boy: 8:06 mile
Median 13 year old girl: 10:03 mile
The weird thing is that 7 year old girls are still over a minute slower than 7 year old boys for both the median and the 85th percentile. That's way before puberty hits: