7 replies to this topic

[Michael Lustgarten]

https://www.youtube....h?v=J6nW55kH7Do

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[Cloomis]

Nice summary. One possible confounder is the difference between steps from Low Intensity Physical Activity (LIPA) vs. other more aerobic levels. The Copenhagen study and other studies on running indicate that the benefit from Moderate/Vigorous Physical Activity maxes out at a fairly low level (15 minutes of jogging/week), but the amount of steps from daily running could be quite high. Does the study make a distinction between LIPA and aerobic levels of steps?

[Michael Lustgarten]

Nice summary. One possible confounder is the difference between steps from Low Intensity Physical Activity (LIPA) vs. other more aerobic levels. The Copenhagen study and other studies on running indicate that the benefit from Moderate/Vigorous Physical Activity maxes out at a fairly low level (15 minutes of jogging/week), but the amount of steps from daily running could be quite high. Does the study make a distinction between LIPA and aerobic levels of steps?

It didn't, but for that reason, I track average daily HR in conjunction with body weight as an index of daily exertion (https://www.youtube....h?v=GpKo7x8z9eU), which is more specific than steps, which can very for intensity.

[Fafner55]

There is a strong association between number of steps/day and all-cause mortality, particularly in those over 65 years old.

 

“Association of Daily Step Count and Step Intensity With Mortality Among US Adults” (2020) https://jamanetwork....bstract/2763292

 

 

 

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[Michael Lustgarten]

U-Shaped Association Between Duration Of Sports Activities And Mortality

 

https://www.youtube....h?v=Ooj9ch2pSO8

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[Cloomis]

Subgroup analyses necessarily have less power than the headline result, so it's unfair to say that the paper's title is incomplete because all categories in the subgroups were not statistically significant, despite showing similar trends to the headline.

[Michael Lustgarten]

I understand that POV, but most will probably read the study's title and stop there. The purpose of the video is to show the rest of the story.

[johnross47]

To some extent they are showing that people who are healthy are healthy.