[NMCycling] For health benefits, there is no upper bound on aerobic exercise

[John Vance via Bike-racers]

This study, unlike previous ones, measured fitness objectively with a
treadmill test instead of basing it on self reporting.  This eliminated the
people who count 3 hours of house cleaning and personal care as exercise.
Their "elite" level subjects were people capable of 5 to 6 minute miles,
and they showed continuing mortality improvement all the way up to these
elite performers

The link to the actual study is in the first paragraph.  Look at the size
of effect - it's huge from low fitness to elite.  It's still significant
between high fitness and elite.  Look at Table 2 for the fitness cutoffs
measured in METs.

On Mon, Oct 22, 2018 at 12:10 PM Bob Perls <perlsbob at gmail.com> wrote:

> Certainly “The Haywire Heart” written by an electrophysiologist and a
> cycling coach indicates that 3 hours seems to be the break point beyond
> which repeated high level efforts result in diminishing marginal gains and
> probably has an adverse effect long term on mortality and morbidity.
>
> Bob Perls
> www.unitenm.us
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> On Oct 22, 2018, at 11:42 AM, John via Bike-racers <
> bike-racers at mailman.swcp.com> wrote:
>
> Viewed an interesting Ted Talk about how High Intensity/Competitive
> training can cancel out any gains made to longevity.  Seems moderation is
> key or until the next study comes out….
>
> https://www.youtube.com/watch?v=Y6U728AZnV0
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> *From:* Bike-racers <bike-racers-bounces at mailman.swcp.com> *On Behalf Of *John
> Vance via Bike-racers
> *Sent:* Monday, October 22, 2018 11:17 AM
> *To:* Bike Racers <bike-racers at swcp.com>
> *Subject:* [NMCycling] For health benefits, there is no upper bound on
> aerobic exercise
>
>
> https://www.cnn.com/2018/10/19/health/study-not-exercising-worse-than-smoking/index.html?no-st=1540215967
>
> There are two takeaways from this study.  First, being inactive really is
> deadly, and second, there is no risk associated with the levels of exercise
> we engage in.  In fact, health benefits continue to increase the more you
> exercise:
>
> >There does not appear to be an upper limit of aerobic fitness above which
> a survival benefit is no longer observed. These results are in concordance
> with previous observational studies35-38 of highly active cohorts and other
> large, longitudinal studies4,6 of CRF and mortality but are notably
> discrepant from population-based studies24-26 of physical activity and
> exercise. This difference may reflect the objective measurement of physical
> fitness in the present study, as opposed to self-reported activity levels,
> which have been a major limitation of prior studies.
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