![]() This standard is used particularly in America. NTSC ( National Television System Committee) Motion picture films are shot in 24 fps (frames per second - full-images) usually on 35 mm film material. The ambiguity of the FILM and NTSC runtimes output of the PAL-NTSC-FILM-Converter will be explained there. But again, this will vary from one machine to the next, so if you go to a gym, make sure you use the same treadmill and incline settings from one session to the next.* You should read detailed information about Television Standards and video formats. Your conversion will be based on the difference between those two distances. Then run on your treadmill for the same amount of time at the same heart rate. If you still really want a conversion, the best approach would be to run outside for a set amount of time at a set heart rate. The biggest advantages with a treadmill are that you can train regardless of weather, and you can train specifically for inclines (and declines with some models). If you are training specifically for a running event, there is no replacement for training on the surface you will be running on (pavement, track, grass, etc). The treadmill advantage will vary based on brand, since they will use different belts, and the tread-board can have more or less spring, depending on manufacturer. If your strides are different you may need to work on lengthening your stride outside.Ī 1 - 2 degree incline will give you enough extra resistance to adequately compensate for the reduced difficulty from using a treadmill, however there is no exact calculation for this. If your strides are the same that means that you are actually running faster on the treadmill (which is not a negative thing) and you need to push yourself outside more. Is it roughly the same outside for the same distance (and don't trust all outdoor signs that give you distance info). If you are really really concerned then count your strides on a treadmill for one mile/2km. If your outdoor times are slower are you sure the running area is flat, are you sure about the distances, do you like where you run, are there obstacles, do you run at the same time of day compared to indoor, how is the weather? If the times are still different then you need to see if there is something you can do to help your "slow area". ![]() If your treadmill times are vastly different from outdoor times I would try a few other treadmills to make sure the calibration isn't throwing you off. Unless your goal is marathons or longer road racing you do not need to make an adjustment on your treadmill. If I had my way I would be in a room at 50F with little humidity at 1 PM. I have ran in small rooms where I could tell the oxygen levels had depleted during my run, I personally can't stand running in humid rooms, I run slower with a video screen in front of me. Just like the outdoor winds and hills and rough road conditions you may face you can also face indoor conditions. ![]() In theory it is probably right on average but a better tool would be going between -5 to 5% to mimic the hills you will face - I know that is only possible with very high end treadmills. From the road racing/marathon community they believe setting the incline to 1-2% should mimic times they would get on average when out on the road. The question is very very similar to saying do you run faster on a track or road running? People have the same variances. Others get sick on treadmills and need to run outside. Personally I have the attitude that I will do anything I am "made" to do so I think I am faster on the treadmill - yes it is in my head too. I have worked with people that have had faster treadmill times and others that have had faster outdoor times. I have worked out at a gym where the owner kept the desirable (good location/tv) treadmills inclined on "0" so the heavy runners wouldn't use them. I have seen both inclined and declined slopes for this. ![]() Also - and more common - just because a treadmill is on a LEVEL floor doesn't mean the "0" level is actually level. NOTE** Just because a treadmill is on a flat floor doesn't mean you are running on level. Indoor - Treadmill flat, same temp as outside, mph/kph calibration is correct (this is hard to prove or disprove but if you are an experienced runner you know if it is wrong) Outdoor - Completely flat, little wind, similar surface (let's say a rubber track) ![]()
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