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[1] http://en.wikipedia.org/wiki/Transport_in_Copenhagen#Cycling
Since the study did not report nor account for other physical activities, it should be noted that a vast number of people in Copenhagen ride bikes around town. [1] 36% commute by bicycle; municipal ambition is 50% by 2015. [1] http://en.wikipedia.org/wiki/Transport_in_Copenhagen#Cycling
What this study says is, "Running really fast (> 7mph for four hours a week is not exactly a cakewalk) for long periods of time might reduce your mortality.
Anecdotal opinion of someone that ran 6:50ish per mile pace yesterday in the SF Kaiser Half-Marathon and thus am apparently shortening my life... Those of us trying to run faster and be competitive (whether with ourselves or others) really don't care if we lose a few years of life. Quality over quantity! These articles come up every so often and seem to just serve as reasons for sedentary people to feel smug about th…
7mph is a speed a lot of people can't run. Those are 8 1/2 minute miles. It corresponds to a speed of 26min for a 5k. This article http://www.letsrun.com/forum/flat_read.php?thread=4612823 has some stats for a 5k race. The average time for men was 28min, and only 10% of the women were faster than 26min. Slower speeds might skew towards women, who naturally live longer. Another thought is that people who run fast do s…
Eyeballing [2] 26:00 will get you 93rd out of 300, ie top 1/3rd. That's probably achievable by someone who runs regularly (3 times a week). On [3] it gets you 362/844.
[2] http://www.parkrun.org.uk/aberdeen/results/latestresults/
The error bars for strenuous exercise in the publication are laughable. Out of a population of ~1000, only 36 were strenuous joggers and only 2 of them died.
TL;DR; strenuous jogging doesn't have health benefits. There isn't enough data from the study to support any stronger conclusions.
It is crazy they would present a subgroup analysis with 40 people, the effect would have to be enormous to find anything.
Here are the charts with the confidence intervals: http://content.onlinejacc.org/article.aspx?articleID=2108914 It is crazy they would present a subgroup analysis with 40 people, the effect would have to be enormous to find anything.
Anecdotal opinion of someone that ran 6:50ish per mile pace yesterday in the SF Kaiser Half-Marathon and thus am apparently shortening my life... Those of us trying to run faster and be competitive (whether with ourselves or others) really don't care if we lose a few years of life. Quality over quantity! These articles come up every so often and seem to just serve as reasons for sedentary people to feel smug about th…
I highly disagree with the last part. There are 2 reason to run as you mention: for health and for competition. Those running for health should be careful about emulating the routines of those running for competition.
With the "speed cutoff" You are also probably getting a higher percentage of males who of course have shorter life expectancy rates than women.
Since the study did not report nor account for other physical activities, it should be noted that a vast number of people in Copenhagen ride bikes around town. [1] 36% commute by bicycle; municipal ambition is 50% by 2015. [1] http://en.wikipedia.org/wiki/Transport_in_Copenhagen#Cycling
Yeah, "couch potatoes" in Copenhagen likely rank in the 90th percentile in terms of overall physical activity for most American cities. What this study says is, "Running really fast (> 7mph for four hours a week is not exactly a cakewalk) for long periods of time might reduce your mortality.
might increase your mortality, actually. That is reduce your life expectancy.