webfoot wrote:
My experience is the opposite. I suspect your treadmill is calibrated incorrectly.
And I suspect your RunKeeper Zombie Chase app on your iPhone is calibrated incorrectly. What's your point?
webfoot wrote:
My experience is the opposite. I suspect your treadmill is calibrated incorrectly.
And I suspect your RunKeeper Zombie Chase app on your iPhone is calibrated incorrectly. What's your point?
Hardloper wrote:
Treadmill runner wrote:A few winters ago I did most of my training on a treadmill. The few days i did run outside i found that my usual treadmill pace was much easier outside. I think the treadmill forces quicker turnover and can be beneficial to some runners who struggle with a slower cadence.
How would the lack of air resistance, the only difference between treadmill and outdoors, force quicker turnover?
Air resistance is not the only difference.
Ho Hum wrote:
Just checked my logs out of curiousity, and it looks like ~20 seconds difference for my 5 mile tempos.
That may be true, but it's all mental. Has nothing to do with the treadmill physically.
Hardloper wrote:
webfoot wrote:My experience is the opposite. I suspect your treadmill is calibrated incorrectly.
And I suspect your RunKeeper Zombie Chase app on your iPhone is calibrated incorrectly. What's your point?
I apologize for your ignorance.
My point is that when "Ho Hum" thinks he is running 7:30 mile pace on his treadmill, in reality it is 8:00 mile pace because his treadmill is not calibrated correctly.
Was that so hard to understand?
I shouldn't be so hard on Hardloper because I agree with all his (her?) other comments on this thread.
One glass of wine too many Hardloper, time to put the glass down for tonight.
It's not mental. There's no wind resistance on the treadmill, which makes it faster than outdoors. The difference increases the faster you're going.
It's not like nobody's ever looked at this, either.
luv2run wrote:
But according a physicist friend of mine if you run on a treadmill then you do no work since you have not displaced yourself.
In relation to the belt you most certainly have displaced yourself. Tell your physicist friend to pick a different line of work.
webfoot wrote:
I shouldn't be so hard on Hardloper because I agree with all his (her?) other comments on this thread.
One glass of wine too many Hardloper, time to put the glass down for tonight.
sorry... although how did you know my preference of drinks?
I can believe treadmills get miscalibrated, but why do you think his is?
man some people are clueless
your motion relative to the air around you when on a treadmill is very small, so the air isn't colliding with your body. so the air resistance is negligible. this makes a large difference at higher speeds, and a smaller difference when jogging or walking.
looking at the the equation for drag (air resistance basically), you see that drag ~ velocity ^2. in other words, it isnt a linear relationship between the force of drag and velocity. so higher speed = much higher drag
imagine you are running 12 mph on a treadmill, as any letsrunner could do easily for an hour daily. outside, in still air, you'd have air hitting you at 12 mph. on the treadmill, it's 0 mph at constant speeds. so it's like having a 12 mph tailwind while running 12 mph in the same direction.
remember boston '11?
Losertown wrote:
Off topic, but..... speaking of treadmills, anyone ever see walkers at the gym set the incline to the highest grade, and rather than lean into the incline as you would walking up an actual hill, they hold onto the handles and lean back, creating a 90 degree angle with their body and the ramp. What is that?
yes I have seen this. It irritates me for some reason. I guess because it's cheating.
winter runner wrote:
I'd argue that treadmill running makes more sense for long distance training. .
I really like running on the treadmill. One of the great benefits is the ability to run uphill forever. I try to do an uphill run about once a week where I vary the incline from 3% to 6%. Great for the lungs and easier on the legs from less pounding.
What I don't like about the particular treadmills at my fitness center is that they have way too much "bounce" to them and I have had injuries each winter I used them a lot. The other problem is that with the immediate feedback, it is much easier to overtrain trying to hit certain times.
This winter, instead of doing most of my running on the treadmill, I am going to try to do as much outside running as I can and limit the treadmill to one or two runs per week.
In addition to the air resistance I'm convinced the mechanics of running on a treadmill are slightly different. Basically you can cheat the treadmill by bouncing excessively. Contrary to what an above poster said, the time spent in the air does vary among runners. If you have more vertical motion, it will take you slightly longer to back fall down onto your other foot. It's not going to be a huge difference, but it's actually bad running form, as the goal is to go forward, not up.
400metersoffseason wrote:
In addition to the air resistance I'm convinced the mechanics of running on a treadmill are slightly different. Basically you can cheat the treadmill by bouncing excessively. Contrary to what an above poster said, the time spent in the air does vary among runners. If you have more vertical motion, it will take you slightly longer to back fall down onto your other foot. It's not going to be a huge difference, but it's actually bad running form, as the goal is to go forward, not up.
Wow. I'm speechless.
400metersoffseason wrote:
In addition to the air resistance I'm convinced the mechanics of running on a treadmill are slightly different. Basically you can cheat the treadmill by bouncing excessively. Contrary to what an above poster said, the time spent in the air does vary among runners. If you have more vertical motion, it will take you slightly longer to back fall down onto your other foot. It's not going to be a huge difference, but it's actually bad running form, as the goal is to go forward, not up.
Great idea! That must be why it's easier to run east to west than west to east. Since the Earth is rotating under you (at about 1000 mph depending on latitude), all you really have to do is get up off the ground and let the Earth move beneath you.
Maybe that's why the Boston Marathon course is so tough, because it goes west, to east?
legsss wrote:
Air resistance is not the only difference.
legsss wrote:
That may be true, but it's all mental. Has nothing to do with the treadmill physically.
I don't get it. Are you trying to say there are no differences, or that there are more differences besides air resistance? If you're going to be wrong can you at least be internally consistent?
Personally I hate running on treadmills because it really hurts my feet. My soles or bottom of my feet are like tore up and soared to the point where i have to take of 3 days sometimes especially if i did something fast on it. It's suppose to be easier but I find it harder on my breathing. I can run a 5 min. mile outside easy but the work and exertion I have to put in to run that on a treadmill is like 2.5x more. Every time I run on a treadmill even an easy run, the next day I have a real easy time running outside and my breathing is easy. Why is it?
Clam Evans wrote:
your an idiot wrote:Time in the air is what matters on a treadmill. That's very different from distance covered.
Time in the air is directly related to distance covered. Same on the road
No, it's not. On a treadmill you can spend more time in the air with a more vertical jump.
I'm truly amazed by the stupidity of letsrun posters.
Hardloper wrote:
your an idiot wrote:Time in the air is what matters on a treadmill. That's very different from distance covered.
It's fitting that you can't even spell your own handle.
Your welcome.
Losertown wrote:
Off topic, but..... speaking of treadmills, anyone ever see walkers at the gym set the incline to the highest grade, and rather than lean into the incline as you would walking up an actual hill, they hold onto the handles and lean back, creating a 90 degree angle with their body and the ramp. What is that?
What is that? Awesome.
This brings up an interesting question...........
An airplane is sitting on an enormous treadmill. As the plane starts its engines, the treadmill runs in the opposite direction at the same speed the plane is moving. Can the plane take off?