How about jumping jacks?
Probably not, jumping jacks don't take much effort. Think about for how long people can sprint at their maximum speed: 3 minutes would be world class. But doing 3 minutes of jumping jacks is pretty easy.
Hourly 4-second sprints prevent impairment of postprandial fat metabolism
101–110 of 136 posts
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#102I'm 7 pounds into the "Covid 15" despite daily exercise. I may give this a try and see if I see results
FWIW it will be easier to lower your caloric intake to align with the lower activity that is a result of lockdown lifestyle than it will be to boost activity to try to match pre-lockdown lifestyle.
Weight control is practically entirely diet. Exercise achieves other health and lifestyle goals.
Furthermore optimizing your diet during lockdown will pay dividends once you go back to a standard level of activity post-lockdown.
Not to say you shouldn't continue daily exercise, point is if you are trying to control your weight you are focusing on the wrong "lever."
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#103Now that's Agile
We've found that continuous flow works better than 4-second sprints.
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#104Earlier quoted context omitted.
The thing is that because of the 2nd law of thermodynamics, that energy does not go away when we use it. Moving muscles, pumping blood, etc uses energy and transforms it to heat. It's a bit weird that energy doesn't go away when we "use" it, but that's how the universe works :-) What can happen is that energy is locked up in chemical structures (or, I guess as physical potential energy). So if you evaporate water, th…
It's easier to measure the volume of exhaled air and extrapolate calories from that, via CO2 expelled.
Different fuels create different amounts of CO2 per joule though. This is not just a truism in combating climate change but also a key tool when observing metabolism. Whenever someone gives numbers for how much of some exercise energy consumption is from fats and how much is from carbs it is determined by measuring CO2 output and comparing that to measured energy output.
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#105Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#106And here I thought this was about software development.
According to the [site guidelines](https://news.ycombinator.com/newsguidelines.html):
> Hacker News Guidelines
> What to Submit
> On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.
> Off-Topic: Most stories about politics, or crime, or sports, unless they're evidence of some interesting new phenomenon. Videos of pratfalls or disasters, or cute animal pictures. If they'd cover it on TV news, it's probably off-topic.
I'd say this falls under "anything that gratifies one's intellectual curiosity."
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#107Earlier quoted context omitted.
It must be one set of 5 reps per hour, not one sprint every 12 minutes. That's how exercise usually works, and the study is concerned with the "least amount of exercise that can acutely improve fat metabolism and other aspects of health". Activity spaced out every 12 minutes would be disruptive and defeat that purpose.
Thank you, so that explains the 45-s rest mentioned. I assume then each 4-s workout is followed by a 45-s rest. So 49-s * 5 = 245-s (4 min) spend each hour on the excercises.
you have an off by one fencepost error ;)
You only need to rest four times!
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#108Earlier quoted context omitted.
It's easier to measure the volume of exhaled air and extrapolate calories from that, via CO2 expelled.
Different fuels create different amounts of CO2 per joule though. This is not just a truism in combating climate change but also a key tool when observing metabolism. Whenever someone gives numbers for how much of some exercise energy consumption is from fats and how much is from carbs it is determined by measuring CO2 output and comparing that to measured energy output.
Oh huh, I hadn't realized that, thank you!
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#109This study used cycling sprints. I wonder if a similar effect would be observed with say, a set of pushups or squats every hour
How about a slow release exercise pill?
Or hit by an acoustic or EM signal?
Re: Hourly 4-second sprints prevent impairment of postprandial fat metabolism
#110Ok 4s/hour. 8 hours/day of sitting. So 32s day of total exercise!?! Still probably will not do it.
I mean this sounds way healthier to me than endless cardio. That is much more taxing for the body. This short sprints could certainly spike metabolism without the running out of limiting factors that happens with endurance exercise. Net effect, your body stays in a physiologically high activity state without producing excess stress hormones. Sign me up
It's not offering all the other benefits of exercise (ie. building muscle and cardiovascular health). You're not going to not get fat doing this, and I doubt it'll keep you from being out of breath while climbing the stairs.