interesting — looks like would feel like running on pair of slanted pogo sticks, like
juggling springs with feet
How to run 50% faster without external energy (2020)
111–120 of 206 posts
Re: How to run 50% faster without external energy (2020)
#112Earlier quoted context omitted.
Mmmm, not quite. The ones you and I can buy have a single plate, and stack height of 36mm. The ban was for shoes (like the VaporFly prototype) with >40mm stack height and/or multiple plates. Not that this article clears the matter a whole lot, but there is more information (sorry, couldn't find a succinct article on the topic): https://www.cbsnews.com/news/nike-vaporfly-running-sneaker-n... I've used them (as a ~3:00…
I wonder if that would do anything for my plantar fascitis... I made a mistake in shoe choice for a vacation one year, before I knew how much my wife absolutely insists on walking at least 10 miles a day. That was 8 years ago and I still have pretty severe pain almost every morning.
I beat the shit out of my plantar fascia when I took to longboarding one summer.
I basically had to stop any recreational walking for a year. I tried the Vibram FiveFingers and I think they helped (yes, I know about the lawsuit: https://www.bbc.com/news/business-27335251), but my equation for recovery is rest + time then gentle strengthening (and luck I guess, in the case of my plantar fasciitis). And ergonomic everything wherever possible to prevent future issues before they occur.
Re: How to run 50% faster without external energy (2020)
#113This post really reminds me of Keahi Seymour. I forget where I first learned of him, but it may have been an HN post because he was the subject of an article about pursuing a dream for 30 years and failing. But basically, the story is that he wants to produce and sell “bionic boots”. I forget the exact challenges he has faced in getting his goals met, but apparently he does have a working prototype of some sort that is used in a YouTube video.
Re: How to run 50% faster without external energy (2020)
#114Earlier quoted context omitted.
Mmmm, not quite. The ones you and I can buy have a single plate, and stack height of 36mm. The ban was for shoes (like the VaporFly prototype) with >40mm stack height and/or multiple plates. Not that this article clears the matter a whole lot, but there is more information (sorry, couldn't find a succinct article on the topic): https://www.cbsnews.com/news/nike-vaporfly-running-sneaker-n... I've used them (as a ~3:00…
I wonder if that would do anything for my plantar fascitis... I made a mistake in shoe choice for a vacation one year, before I knew how much my wife absolutely insists on walking at least 10 miles a day. That was 8 years ago and I still have pretty severe pain almost every morning.
I am NOT anyone with relevant credentials, just a lot of running over the last 40 some years in a lot of shoes. That said, I no reason to think that VaporFlys would help with plantar fasciitis. I hypothesize that it's the energy return (which is energy not pounding the legs) is what saves the legs, and I don't know that help plantar problems. And the shoes are designed around running, not walking.
Mainly, though, is they're $250 a pair. That's a pretty pricey experiment without some bit of evidence, even if anecdotal, that they might work for your problem.
Good luck, though. I know plantar fasciitis is a tough one to treat.
Re: How to run 50% faster without external energy (2020)
#115Earlier quoted context omitted.
Eh, I'm not worried about their top speed claims... I'd be far more concerned that you could reach those speeds, and the hospital bills incurred by the inevitable accidents. You're going to have to have a massive amount of safety gear weighing you down (thereby losing speed) to keep you from busting your head open like a rotten cantaloupe moving that fast. Velocity squared is a bastard.
People bike and ski that fast every day with no protection other than a helmet.
And people occasionally die biking and skiing from their own accidents hitting unmovable objects — something virtually unheard of with runners.
Re: How to run 50% faster without external energy (2020)
#116Earlier quoted context omitted.
The idea that your muscles have enough strength on the upstroke to contribute meaningfully to cycling is actually a bit of a misunderstanding. Your leg muscles for lifting are much much much weaker than your leg muscles for pushing - they're designed to only lift up the weight of your leg and not much more. The main advantage of the clips is to keep your leg in contact with the pedal throughout the cycle and make sur…
Any muscle is trainable. To some extent. If you cycle enough, you will develop muscles necessary to pull the pedal up. Additionally, the goal isn't to double your power output. It is to be better than the other cyclist. Even by just a tiny bit. I personally think that clipping the feet helps more with left right stability. Also, if you are pulling with one leg, you can potentially push more with the other. Normally y…
I would assume that just your hands being on the handlebars would let you push more than you weigh.
Re: How to run 50% faster without external energy (2020)
#117Earlier quoted context omitted.
People bike and ski that fast every day with no protection other than a helmet.
And people occasionally die biking and skiing from their own accidents hitting unmovable objects — something virtually unheard of with runners.
So what? These people will no longer be your run of the mill "runner". They will be augmented, much the way we're augmented by using bicycles and skis, etc.
The original claim that if someone were to be able to move at these speeds that they would suddenly need to be heavily bogged down in safety gear is flat out ridiculous. Comparing it to other sports where we move at similar speeds should be more than enough evidence of that.
Re: How to run 50% faster without external energy (2020)
#118Earlier quoted context omitted.
Eh, I'm not worried about their top speed claims... I'd be far more concerned that you could reach those speeds, and the hospital bills incurred by the inevitable accidents. You're going to have to have a massive amount of safety gear weighing you down (thereby losing speed) to keep you from busting your head open like a rotten cantaloupe moving that fast. Velocity squared is a bastard.
People bike and ski that fast every day with no protection other than a helmet.
Bike crashes at 40 mph are brutal. The vast majority of fast, competitive cyclists in races are topping out at or below 25-30 mph in flat ground riding.
Re: How to run 50% faster without external energy (2020)
#119Earlier quoted context omitted.
And people occasionally die biking and skiing from their own accidents hitting unmovable objects — something virtually unheard of with runners.
So what? These people will no longer be your run of the mill "runner". They will be augmented, much the way we're augmented by using bicycles and skis, etc. The original claim that if someone were to be able to move at these speeds that they would suddenly need to be heavily bogged down in safety gear is flat out ridiculous. Comparing it to other sports where we move at similar speeds should be more than enough evide…
People do ski faster than that but low friction means slower deceleration which is a huge reason it’s even possible to learn reasonably safely. This applies to basically all high speed winter sports and is under appreciated by most viewers. Similarly landing from a jump or fall on a hill the force vectors mean people are mostly sliding on the surface resulting in significantly less forceful impacts.
Biking at 45-48 MPH is rare, dangerous, and free of tripping hazards which I think are a much larger concern. Further, people also add extra protection for downhill MTB such as a back protector, thick gloves, goggles, helmets with neckbrace, padded clothing, and knee pads. Yet it also has similar benefits from being on steep hills.
Re: How to run 50% faster without external energy (2020)
#120Earlier quoted context omitted.
The idea that your muscles have enough strength on the upstroke to contribute meaningfully to cycling is actually a bit of a misunderstanding. Your leg muscles for lifting are much much much weaker than your leg muscles for pushing - they're designed to only lift up the weight of your leg and not much more. The main advantage of the clips is to keep your leg in contact with the pedal throughout the cycle and make sur…
> The idea that your muscles have enough strength on the upstroke to contribute meaningfully to cycling is actually a bit of a misunderstanding. Absolutely not, and there are plenty of easy counterexamples. If you've ever raced track, team pursuits start from a dead standstill. You have to expend a ton of force to turn a huge gear, and the contribution of the lifting leg is crucial to getting up to speed. Of course i…
>the contribution of the lifting leg is crucial to getting up to speed
This might feel true, but it isn't. Buy or borrow a dual-sensing power meter (Garmin Rally, SRM X-Power etc) and you can see for yourself - there's practically no useful power in the upstroke. Toe clips or clipless pedals can extend the power stroke, but only by a few degrees at the bottom of the stroke.
https://bythlon-pedal.myshopify.com/pages/the-myth-of-the-up...
The intuition of cyclists is a very bad indicator of actual performance. For decades people thought that hard, narrow tyres were faster, but nobody had actually tested it properly. Narrow tyres have lower rolling resistance on a smooth steel drum in a test lab, but they have much higher rolling resistance on real roads with bumps and ruts. When paired with suitable rims, the reduction in rolling resistance of wider tyres more than compensates for the penalty of increased weight and drag.