[HN Gopher] Five minutes of exercise a day could lower blood pre...
___________________________________________________________________
Five minutes of exercise a day could lower blood pressure
Author : geox
Score : 34 points
Date : 2024-11-07 20:42 UTC (2 hours ago)
(HTM) web link (www.sydney.edu.au)
(TXT) w3m dump (www.sydney.edu.au)
| data_spy wrote:
| "Could" is an interesting choice of word. I know researchers are
| cautious but that wording makes it meaningless.
| ajkjk wrote:
| Quite. "5 minutes of exercise a day could raise blood pressure"
| is equally accurate.
| Aurornis wrote:
| The headline is about a study that showed increased activity
| was correlated with decreases in blood pressure.
|
| So, no, it's not equally accurate to say the opposite is
| "equally accurate" unless we're playing pedantic games where
| we ignore the study and pretend it's all just meaningless
| words.
| markerz wrote:
| Somewhat related is Betteridge's law of headlines:
|
| > Any headline that ends in a question mark can be answered by
| the word no. It is based on the assumption that if the
| publishers were confident that the answer was yes, they would
| have presented it as an assertion; by presenting it as a
| question, they are not accountable for whether it is correct or
| not.
|
| I like to swap out any of these maybe-headlines with the exact
| opposite. It may help us, or it may not.
|
| https://en.wikipedia.org/wiki/Betteridge%27s_law_of_headline...
|
| From the article:
|
| > Just five minutes of activity a day was estimated to
| potentially reduce blood pressure, while replacing sedentary
| behaviours with 20-27 minutes of exercise per day, including
| uphill walking, stair-climbing, running and cycling, was also
| estimated to lead to a clinically meaningful reduction in blood
| pressure.
|
| Sounds like 5 minutes of exercise is where it has a
| statistically significant measurable impact in blood pressure,
| but 20-27 minutes is where it's a meaningful impact.
| nuclearnice3 wrote:
| Getting a little beyond the headline, we find they had people
| wear blood pressure monitors and accelerometers and concluded:
|
| > More time spent exercising or sleeping, relative to other
| behaviors, was associated with lower BP. An additional 5
| minutes of exercise-like activity was associated with estimated
| reductions of -0.68 mm Hg (95% CI, -0.15, -1.21) SBP and -0.54
| mm Hg (95% CI, -0.19, 0.89) DBP. Clinically meaningful
| improvements in SBP and DBP were estimated after 20 to 27
| minutes and 10 to 15 minutes of reallocation of time in other
| behaviors into additional exercise. [1]
|
| [1]
| https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.124.0...
| hertzian56 wrote:
| some people just have a bad genetic soup and do exercise and diet
| and such and still have hbp well beyond the numbers designated as
| meaning "high" ultra high etc I didn't see any hard numbers of
| reduction in the article either, I've read that smoking raises bp
| by 5-10points which is largely marginal when you look at how
| inaccurate most bp readings are. I'm skeptical in this selling
| environment we live in that this isn't all just to sell drugs to
| people for their whole lives, these are the same people who want
| to decimate human populations btw
| hombre_fatal wrote:
| 5-10 points isn't marginal just because there is measurement
| variance to account for. And just because there's variance
| doesn't mean you can't fuzz out real numbers. It's like
| thinking you can stop a timing attack with sleep(random()).
|
| I'd be very skeptical of defending something like high blood
| pressure. People do the same with high cholesterol. It's a
| bunch of cope and wishful thinking that they're very different
| from everyone else who gets heart disease, our #1 killer.
| eemil wrote:
| How much more evidence do we need, that exercise is good and any
| amount is better than none?
| warner25 wrote:
| Tabata et al.[1] found in the mid-1990s that 2-4 minutes of
| "high-intensity intermittent training may improve both anaerobic
| and aerobic energy supplying systems significantly." This was
| popularized as "Tabata training" 20+ years ago. I generally
| believe that brief bouts of exercise can be very beneficial,
| especially because they're easier to do consistently over the
| long-term vs. more time-consuming routines. For a decade now,
| I've just been running through my neighborhood most days for
| 20-30 minutes (with some sprints mixed in) and doing one or two
| maximal sets of pushups or pullups or barbell exercises at home
| on a weekly basis. I know a lot of people who got really into
| longer (e.g. 60-90 minute) gym routines but couldn't sustain it
| for more than a few months, and then stopped doing anything.
|
| [1] https://journals.lww.com/acsm-
| msse/Fulltext/1996/10000/Effec...
| ibzsy wrote:
| Exercise has changed my life for the better. I'm not a fit-geek
| but 20 minutes of light running really helps me clear my head
___________________________________________________________________
(page generated 2024-11-07 23:00 UTC)