41–50 of 206 posts
Naruto run. Don't even need to read the article. "Without external energy (but with external device attached)" is ... a bit disappointing. At what point does it cease to be running and start to be run-assisted catapulting? Or catapult-assisted running? It seems like more than just running .
That's not what TFA is discussing, you should probably read it.
Naruto run. Don't even need to read the article. "Without external energy (but with external device attached)" is ... a bit disappointing. At what point does it cease to be running and start to be run-assisted catapulting? Or catapult-assisted running? It seems like more than just running .
I thought this would be about the Young Shuffle: https://en.m.wikipedia.org/wiki/Cliff_Young_(athlete) It's actually surprisingly easy to do because you feel you're using less energy when doing it.
If you change run to travel you can do the same thing with a kick scooter
ITT: people who read scientific articles by skimming the pictures. The proposal isn't "springs under your feet" it's "springs along your legs that you load while your leg is in the air". The point is that by loading the spring with a leg which is otherwise not doing anything you're able to increase the overall energy output of the body. Their Fig. 2 shows exactly the (theoretical) difference between the naive "jumpin…
It is a bit sad that the article doesn't explain what the motion would feel like similar to. Would it be like walking stairs?
ITT: people who read scientific articles by skimming the pictures. The proposal isn't "springs under your feet" it's "springs along your legs that you load while your leg is in the air". The point is that by loading the spring with a leg which is otherwise not doing anything you're able to increase the overall energy output of the body. Their Fig. 2 shows exactly the (theoretical) difference between the naive "jumpin…
One of the reason pro cyclists clip their feet to their pedals is so they can load the “other” leg through the back of the stroke, and across the bottom as well by pulling back on the loaded leg. Come unclipped in a sprint and you’re fucked. Sounds like this is the same thing for running.
ITT: people who read scientific articles by skimming the pictures. The proposal isn't "springs under your feet" it's "springs along your legs that you load while your leg is in the air". The point is that by loading the spring with a leg which is otherwise not doing anything you're able to increase the overall energy output of the body. Their Fig. 2 shows exactly the (theoretical) difference between the naive "jumpin…
Cycling is extremely efficient -- around 80% of the energy expended by the body is converted to forward motion, even in the simplest configuration, and this can be enhanced further under some circumstances.
ITT: people who read scientific articles by skimming the pictures. The proposal isn't "springs under your feet" it's "springs along your legs that you load while your leg is in the air". The point is that by loading the spring with a leg which is otherwise not doing anything you're able to increase the overall energy output of the body. Their Fig. 2 shows exactly the (theoretical) difference between the naive "jumpin…
One of the reason pro cyclists clip their feet to their pedals is so they can load the “other” leg through the back of the stroke, and across the bottom as well by pulling back on the loaded leg. Come unclipped in a sprint and you’re fucked. Sounds like this is the same thing for running.
The main advantage of the clips is to keep your leg in contact with the pedal throughout the cycle and make sure the ball of your foot is optimally placed on the pedal. With a traditional pedal you have to keep some downward force on the pedal to create friction to avoid slipping off, so even when that leg is rising up, you can't completely unload the pedal. With clips you can completely unload the pedal.
ITT: people who read scientific articles by skimming the pictures. The proposal isn't "springs under your feet" it's "springs along your legs that you load while your leg is in the air". The point is that by loading the spring with a leg which is otherwise not doing anything you're able to increase the overall energy output of the body. Their Fig. 2 shows exactly the (theoretical) difference between the naive "jumpin…
It is a bit sad that the article doesn't explain what the motion would feel like similar to. Would it be like walking stairs?
It makes a big difference to be able to have both legs "inputting" energy into the system at the same time. I would say "non-linear response" but that's probably inaccurate... but maybe not? Basically once you've overcome rolling resistance to _start_ going up a hill, being able to continue it with "both legs" instead of one feels like you're not overcoming the "zero-to-one" hurdle as much and instead staying in the "one-to-two" zone. Like you're not "starting over" every downstroke, but instead transitioning your power from one leg to the other.
Given a pretty basic commuter bike that I'd upgraded over time, it felt like moving from ~35 to ~20 tires (basic to "road bike") felt like "gaining a gear" (what used to need 1st gear, I could now do in 2nd), and same with clips, also "gaining a gear" (cumulative: now I could be in 3rd instead of being in 1st).