10 ms·
Time to run or time to walk? Your body knows the answer
- cglan 5y agoThis concept exists also with CPUs and even cars. A slower more power efficient CPU might be worse off because it simply takes longer to do tasks. The per unit of time cost is lower but the total energy cost for a task is higher
- bronson 5y agoSometimes called race to idle: https://lwn.net/Articles/501913/ https://lwn.net/Articles/501913/
- totetsu 5y agoI think this is the paper I read about this a while ago. https://www.researchgate.net/publication/7481300_Preferred_Transition_Speed_between_Walking_and_Running_Effects_of_Training_Status https://www.researchgate.net/publication/7481300_Preferred_T...
- bluenose69 5y agoThe original article was notable for its lack of graphs or citations to the literature. Thanks for posting this link, Figure 1 of which seems to make a lot more sense than the U-shaped discussion in the original article.
- hamiltonians 5y agorunning seems less efficient because you get tired sooner
- MauranKilom 5y agoThe article talks about that: Running is roughly the same energy/distance, but it's more energy/time because you cover more distance per time.
- bronson 5y agothe article says “walking 50km as fast as possible takes nearly double the work and energy than running a marathon, even though the distance is just 8km longer”
- spicybright 5y agoI wouldn't trust this website. It's based around selling a fitness product, so there's a very good chance it's biased. https://www.polar.com/en/grit-x https://www.polar.com/en/grit-x
- hiptobecubic 5y agoBoth running and walking are fitness activities that are supported by their tracking hardware. In what way do you expect them to be biased?
- vnorilo 5y agoNah, seems like a content marketing piece, and frankly one of the better ones I've read recently.
- MauranKilom 5y agoYes, I meant "at normal speeds", not "as fast as possible". That's quite obviously what the statement I replied to was about.
- DangitBobby 5y agoI always felt that walking was more efficient intuitively but I'm happy to see it quantified in the article. > First, even if you happen to hit exactly the minima of the walking cost of transport curve, you’ll be consuming nearly 80% of the energy per traveled distance as compared to running
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- MeinBlutIstBlau 5y ago
- pengaru 5y agoThere are more efficient modes of running that aren't really available when walking, and any experienced marathoner knows how to exploit this. It took me years of occasional running before it all clicked, despite more experienced friends having shared youtube videos on the subject. I'd always been running in a fashion more like a slowed down sprint when trying to pace myself. But that's not the efficient way, the efficient way is to logically run with your knees and let your lower legs/feet come along for the ride. Lean forward enough to prevent heel striking, and this also naturally imparts forward thrust when your foot leaves the ground in response to the knee driving forward. Your calves become more like springs storing and releasing energy, without being explicitly activated.
- elktea 5y agothis is the idea behind barefoot running I believe
- xvedejas 5y agoIs heel striking bad? I am not a runner, but I've practiced heel striking while backpacking to give myself more foot-stamina. Maybe there's a better way?
- pengaru 5y agoYes, not only is it hard on your body but the energy lost in the strike you'd benefit from storing in your calf.
- deleted 5y ago[deleted]
- dilyevsky 5y agoI don’t think the “hard on your body” part is true anymore (if it ever even was) if you use proper footwear.
- jazzyjackson 5y ago
- gundmc 5y ago> You’ve probably seen it on TV multiple times. Exhausted, depleted of energy, and barely capable of taking another step, elite race walkers collapse as soon as they reach the finish line. I'm not sure if I have unusual TV habits or if the author is overestimating the amount of watch time and coverage race walking gets.
- pwthornton 5y agoI have never witnessed race waling in my life, not even in passing. I am aware it exists and have seen clips of it, but I've never actually seen a race live, nor do I know anyone who has.
- astura 5y agoI've never even heard of race walking before, let along watched it on TV.
- xxpor 5y agoMy understanding is that its MUCH more popular in the UK
- paxys 5y agoRace walking is an Olympic sport. Not very common day to day, but I'm sure most people have at least seen videos of it at some point.
- pimlottc 5y agoI agree, which makes it pretty flimsy as proof of the premise. "You've probably seen someone look really tired after race walking. On the other hand, this guy did pushups at the end of a marathon. Ergo, race walking is harder than marathon running."
- wingerlang 5y agoSeems like the target audience is runners? I barely run to catch a train and I've definitely caught this on EuroSport or the Olympics more than a couple of times in my lifetime.
- aitchnyu 5y ago
- pekkavasala 5y ago
- spicybright 5y agoWhat does shorting a site mean?
- pekkavasala 5y ago
- tumnus 5y agoIf you mean obfuscating an answer to a plainly asked question, you might be correct ;>
- spicybright 5y agoI haven't had a good schooling experience growing up, so I'm asking the question to learn and hopefully become more well rounded.
- makeitdouble 5y agoI was expecting Nestle levels of drama from your energy. Instead I don’t see anything going on with this company https://en.wikipedia.org/wiki/Polar_Electro https://en.wikipedia.org/wiki/Polar_Electro What’s your beef ? any links ?
- spicybright 5y agoI wouldn't trust this website. It's based around selling a fitness product, so there's a very good chance it's biased. https://www.polar.com/en/grit-x https://www.polar.com/en/grit-x
- Jtsummers 5y agoWhat would they gain by lying to people about the relative efficiency of marathon runners versus race walkers, or ways to burn more energy when walking? How would those lies (if lies) lead to more sales for them (that's the only benefit I can imagine)?
- spicybright 5y agoIt's basic scrutiny of an article. If a company primarily sells fitness watches, publishing articles on fitness will net them sales, whether it's true or not. The incentive to be correct isn't there, unlike more rigorous sources of information. It's the same reason you shouldn't blindly believe the marketing words on the back of a box of cereal.
- deleted 5y ago[deleted]
- carabiner 5y agoWhat? If a fitness company started posting absolute bullshit like "vaccines hurt running performance," I think that would reflect poorly on them and cause them to lose sales. I wear a fitness watch similar to a Polar and would abandon my brand if they started espousing health pseudoscience.
- jamiek88 5y agoThey are a well known company in the fitness space. This is like backblaze blogging about drives or square about credit card processing.
- Dwolb 5y agoThe gain for this particular article is more sales due to more viewers on the page. I’m guessing this content is true. The listed author has a PhD in sport science.
- pekkavasala 5y ago
- noisy_boy 5y agoFor someone who is trying to return to regular walking/running, I find a mix of both works well for me. Stretch and start walking faster to warm your body up, run until your heart/legs don't want to go anymore, resume walking to recover and then run again and so on. I find that doing this creates less resistance in my mind because I'm more attentive/easy going with my body and the overall session is less punishing - that makes going for that next session psychologically that much more easier, which is the key to maintaining a regular schedule, atleast for people like me who do not "love" exercising. PS: also, I bought a smartwatch that shows the stats etc which is kind of a fun target to meet/improve upon - not sure if this "gamification" is a good idea or how long until the novelty wears off but its fun for now.
- agumonkey 5y agoI second this. There's another psychological aspect to me. Training the "let's resume" action of your brain is very important. And doing this alternating smooth to harder is one good way.
- jerlam 5y agoThere's a training program by a former Olympian that uses alternating blocks of running and walking: https://medium.com/runners-life/how-to-start-running-using-jeff-galloways-run-walk-run-method-ea66c054dd24 https://medium.com/runners-life/how-to-start-running-using-j... I've had good success with this strategy - it breaks up the monotony of long runs, and overall pacing is accomplished by changing interval duration instead of trying to maintain a precise fixed speed over the entire run. Unfortunately, I've had no success convincing other beginners to try this method, as the predominant wisdom is that you have to run over the entire duration, and beginners almost always go far faster than they should.
- dll 5y agoCouch to 5K (C25K) is another run/walk training program, which is very popular here in the UK. Even the NHS (https://www.nhs.uk/live-well/exercise/couch-to-5k-week-by-week/ https://www.nhs.uk/live-well/exercise/couch-to-5k-week-by-we...) promotes it. I started with a C25K plan in November 2020 and ran my first half marathon in October 2021. I'm looking at marathons now, it's changed my level of fitness far more than I could imagine.
- pkrumins 5y agoDavid Goggins has entered the chat.
- doe88 5y agoIn some endurance sports there is also the question of whether to use poles or not, on this subject last week I've seen these fascinating tweets: https://twitter.com/nicgiovanelli/status/1488411562515869696 https://twitter.com/nicgiovanelli/status/1488411562515869696 https://twitter.com/nicgiovanelli/status/1490374195326464007 https://twitter.com/nicgiovanelli/status/1490374195326464007