Time to run or time to walk? Your body knows the answer
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Re: Time to run or time to walk? Your body knows the answer
#2This 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
Re: Time to run or time to walk? Your body knows the answer
#3I think this is the paper I read about this a while ago.
https://www.researchgate.net/publication/7481300_Preferred_T...
Re: Time to run or time to walk? Your body knows the answer
#4running seems less efficient because you get tired sooner
Re: Time to run or time to walk? Your body knows the answer
#5running seems less efficient because you get tired sooner
The article talks about that: Running is roughly the same energy/distance, but it's more energy/time because you cover more distance per time.
Re: Time to run or time to walk? Your body knows the answer
#6This 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
Sometimes called race to idle: https://lwn.net/Articles/501913/
Re: Time to run or time to walk? Your body knows the answer
#7running seems less efficient because you get tired sooner
The article talks about that: Running is roughly the same energy/distance, but it's more energy/time because you cover more distance per time.
the 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”
Re: Time to run or time to walk? Your body knows the answer
#8running seems less efficient because you get tired sooner
The article talks about that: Running is roughly the same energy/distance, but it's more energy/time because you cover more distance per time.
I 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
Re: Time to run or time to walk? Your body knows the answer
#9There 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.
Re: Time to run or time to walk? Your body knows the answer
#10There 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 eff…
this is the idea behind barefoot running I believe