dunes runner wrote:
Hardloper wrote:
I've never seen a treadmill set to 1% by default.
That's because I have MEASURED the incline on various treadmills, and you haven't.
Okay, I'll measure them next time I go to the gym and see.
dunes runner wrote:
Hardloper wrote:
I've never seen a treadmill set to 1% by default.
That's because I have MEASURED the incline on various treadmills, and you haven't.
Okay, I'll measure them next time I go to the gym and see.
I don’t think anyone has really addressed OP’s main question, which is why not just run faster to take into account the lack of air resistance instead of increasing the treadmill incline. Everyone is just saying why you put the treadmill on an incline, which I think everyone understands.
This study looks very flawed. All done at 0% incline. Impressive analysis based on flawed premise.
OP, running at a slight incline on a treadmill can be almost identical to running on flat track on a windless day. You ask about running with 0% incline? Sure that is useful, it's like running fast on a very slight downhill. I think that is great for working on mobility and turnover. But don't you also want to do running on the flat, and up hills? Variety is good.
My threadmill is at 2% incline as default on level ground. It also reports 10.5% higher than actual speed, and the internal clock runs at 59.1 seconds per minute.
It's a marvel of modern engineering.
Prove it
if going at 0% incline is too easy, go faster and work on your turnover. good neuromuscular training!
Bro a 6-8% incline is very much noticable...
How is running at 0% incline equivalent to running downhill? Sounds like Bs to me.
Sasquatch131 wrote:
How is running at 0% incline equivalent to running downhill? Sounds like Bs to me.
It works like this. Running at 7:30 pace outside, you have about 7N of force acting against the direction of running due to air resistance (perpendicular to the ground). At 0% incline on a treadmill, that force doesn't exist. When you turn the incline to 1%, you get about 7N of force acting against you (perpendicular to the belt) due to gravity, so it's like running on flat ground outside. Runing at 0% would be more like running downhill at 1% outside or running with an 8mph tailwind.
...and the faster you go on the treadmill at 0%, the greater the simulated downhill slope! 11mph is probably something a 2% downhill outside in still air, or flat ground with an 11mph tailwind.
Hardloper wrote:
Running at an incline better simulates air resistance because outside you would lean forward to counteract air resistance. So running on the treadmill at a slight incline is actually closer to the same gait as running outside.
This is one of the dumbest things I have ever read.
truth hertz wrote:
Hardloper wrote:
Running at an incline better simulates air resistance because outside you would lean forward to counteract air resistance. So running on the treadmill at a slight incline is actually closer to the same gait as running outside.
This is one of the dumbest things I have ever read.
You forgot your counterargument. Lets see your calculations.
Easy Peasy wrote:
I don’t think anyone has really addressed OP’s main question, which is why not just run faster to take into account the lack of air resistance instead of increasing the treadmill incline. Everyone is just saying why you put the treadmill on an incline, which I think everyone understands.
This.
Also
1. Considering most gyms are set at something like 70-80 degrees, it's actually harder running inside compared to running outside in cool weather, like 40-60 degrees.
2. Air resistance slows you down, but air also cools you off, which makes you run faster.
...because treadmill at 0% you do not put any net energy pushing back on the treadmill when you step. Even when running really fast. Running outdoors, on a day with no wind, you have to push back enough with each step, to equal the energy required to overcome your wind resistance.
Simple...look at the research of gait kinematics overground vs treadmill and you'll see that a 1% incline does not require different gait kinematics.
Physics_Guy wrote:
Sasquatch131 wrote:
How is running at 0% incline equivalent to running downhill? Sounds like Bs to me.
It works like this. Running at 7:30 pace outside, you have about 7N of force acting against the direction of running due to air resistance (perpendicular to the ground). At 0% incline on a treadmill, that force doesn't exist. When you turn the incline to 1%, you get about 7N of force acting against you (perpendicular to the belt) due to gravity, so it's like running on flat ground outside. Runing at 0% would be more like running downhill at 1% outside or running with an 8mph tailwind.
Curious where you get the 7N of force from. Have you measured the AP forces on an instrumented treadmill before? Noraxon makes a nice one...we have it in our lab :)
I hope Physics_Guy answers you, but if he doesn't, I will presume to write something.
7N could be the backwards treadmill-belt component of force to hold a slim runner in place on that belt. (tangent of treadmill angle)x9.8xmass how's that?
oh I think it's sin not tan
6-8% is very noticeable. I run normally around 7-8 mph it feels like 6:45-7 pace outside. I normally do a few strides or run the last 1 mile at 0% just to get some leg turnover. I run the bulk of my easy mileage at 6%.