I'm a lazy person, so running while staying in the same place appeals to me.
Are there any benefits to running outside worth considering, besides aesthetics and feeling the wind in your hair?


13 Answers 13


I prefer running outdoors for several reasons...

  • It can keep your mind somewhat more engaged than when using a treadmill (i.e. taking in the scenery, etc.) (and possibly keep it away from the fact that you're exercising).
  • You get to go somewhere and see things other than the inside of a gym.
  • As Greg mentioned, the natural benefits of fresh air and sunshine are a huge plus and should not be underrated.
  • You can establish routes using bike paths, neighborhood/city blocks, hills, etc. to track progress as well as to switch things up to keep it interesting.
  • You're less likely to quit. You can easily hop off a treadmill, but once you've jogged in one direction, you have to jog back. ;)
  • 39
    +1 for "less likely to quit" - I one day ran 5 miles (which I can do fairly easily). I was not paying too much attention, just enjoying the beautiful day. Then I realized I had to run back. I took the next day off from running...
    – JasCav
    Commented Mar 2, 2011 at 4:12
  • 35
    What is this fresh air and sunshine you speak of, how can us Londoners get some
    – Chris S
    Commented Mar 2, 2011 at 10:19
  • 11
    i actually enjoy treadmills because they don't let you slow down!
    – Moz
    Commented Mar 16, 2011 at 12:55
  • 1
    @moz good point but you won't convert me! ;)
    – gary
    Commented Mar 16, 2011 at 14:16
  • 3
    +1 for "keeping the mind engaged". I get bored senseless running on a treadmill (and a track is not much better), give me a riverside or a park any day!
    – VPeric
    Commented Sep 4, 2011 at 15:09

A few advantages to running outdoors:

  • Sunshine (get your vitamin D!)
  • Depending on smog levels and your gym's cleanliness and air filtration system, there is probably fresher cleaner air outside.
  • If you run "barefoot" (e.g. Vibrams) on dirt/grass, you'll get some extra stabilizing work.
  • If you get chased by a dog, you'll have extra motivation to really push yourself to 100%! :-)
  • 2
    What stops you from running barefoot on a treadmill? Except people looking at you with strange expressions on their faces :)
    – Jonas
    Commented Mar 1, 2011 at 20:27
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    @Jonas - Nothing but your own self-conciousness! :-) but a treadmill is an even constant surface. It's the unevenness of a trail or field that offers the stabilizing exercise.
    – G__
    Commented Mar 1, 2011 at 20:28
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    You can't outrun a dog. I couldn't outbike a dog the last time I got chased. If it wants to maul you, it will.
    – JoJo
    Commented Jul 29, 2011 at 15:58
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    -1 Sunshine can also be detrimental, smog levels outside can be worse, barefoot can lead to injury (glass, nails, rocks, etc...), the dog reference is pointless. Commented Feb 2, 2012 at 18:14
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    Aaron's comment deserves the (-1) Commented Feb 16, 2012 at 2:36

I've read a good article/study on this, but I can't find a link to it right now. The general idea for criticism regarding the treadmill that I recall was that the movement is not as natural as it seems, because the treadmill is moving your leg backwards instead of your muscles doing all of that and this apparently can create strength imbalances.

Treadmill Running, Not Such a Great Idea

  • biomechanical differences which may lead to injury
  • when fatigued, ground contact is longer on the treadmill than over ground

Is Running on a Treadmill Bad?

  • "...research is inconclusive when it comes to determining whether or not treadmills are better for your joints than track running."
  • 1
    A few downsides are the hardness of the treadmill, which is quite hard on the joints. Ironically, it are always those who can't handle the loads who start working out on a treadmill... I'm not so worried about strength imbalance, but the treadmill probably makes you run faster than you could/should outside. Generally I'd advise anyone to run slower, unless you're trying to improve your racing times
    – Ivo Flipse
    Commented Mar 1, 2011 at 21:19
  • 2
    There was an article in runner's world about injuries on treadmills, it had more info than this: runnersworld.co.za/columns/ask-the-experts/treadmill-truth but that article has the general giste. Apparently they can do long term damage to your knees
    – Chris S
    Commented Mar 2, 2011 at 10:25
  • 3
    I've heard this before but never understood it. From a physics perspective the only difference between a treadmil and running outside (straight, on a flat path) should be the wind resistance. It's just a frame of reference thing, right? What am I missing?? (This is once your actually running at pace. I can see how accelerating would be different.)
    – Molomby
    Commented Sep 28, 2012 at 2:27
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    You're right @Molomby. There are many differences between treadmill and outdoor running, but the simple fact that the treadmill belt is moving isn't one of them. Your foot being pulled back by the treadmill is physically equivalent to your foot being held in place by the ground as momentum carries your body forward. Galileo explained this physics well.
    – bdsl
    Commented Oct 5, 2015 at 13:28
  • @Molomby My back of the envelope calculation says that wind resistance only costs up to 32 Calories per kilometer.
    – Vaelus
    Commented Feb 22, 2018 at 2:40

Before dismissing treadmills I'll point out some advantages of running on [your own] treadmill:

  • Even surface so the chance of injury (tripping for example) is reduced
  • Less impact on knees and feet - no concrete
  • For longer runs, no worrying about the toilet or carrying drinks with you
  • More accurate measurement of timing and distance which helps for self-improvement
  • No hill running required unless you choose it - if you don't enjoy hill running
  • Faster workouts if you don't have to drive to your location to run

But main disadvantages of treadmills:

  • Demotivating repetitive drudgery, unless you really vary it
  • You stare a wall/Sky news/CNN for 20 minutes
  • Less intensive exercise
  • No variation through new runs, or tracking yourself with GPS
  • No opportunity for 'social' running
  • Initial cost

I prefer treadmills for short or interval training runs, and outdoors for longer runs.

  • 1
    The impact on the knees and feet isn't any better or even worse on a treadmill. There's nothing soft about the wooden plank you're running on. As for the injuries, one mis step on the treadmill can cause much graver injuries then when falling on the sidewalk or a trail. Besides, the way you work out and your shoes are far more likely to cause injuries than the evenness of the surface.
    – Ivo Flipse
    Commented Mar 2, 2011 at 12:04
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    @Ivo treadmills have shock absorbers and aren't really planks. You can get run over outdoors, trip on a tree root etc. etc. But I agree shoes and technique are more likely to cause problems
    – Chris S
    Commented Mar 2, 2011 at 12:26
  • Well the treadmills I have seen have a long wooden plank underneath the belt and the shock absorbers are probably 'simple' springs. They're there so you don't break the thing when running, but surely not meant for softening the landings. But heck, as long as it keeps you running in the Winter, I say go for it, it beats doing nothing!
    – Ivo Flipse
    Commented Mar 2, 2011 at 12:42
  • 1
    I have to disagree on the "no opportunity for 'social' running" part. I have friends who run side-by-side with me on treadmills at the gym and converse. I don't see how that would be improved by running outdoors. Commented May 24, 2011 at 18:25
  • I would add that a treadmill can force you to run harder. Whether that is a good or bad thing depends on your desires as well as your motivation to keep a higher pace. Commented May 25, 2011 at 6:58

For me, the best non-aesthetic benefit to running outside is far better sweat evaporation (if weather cooperates), and therefore a cooler body temperature throughout my run. My gym is air conditioned and the vent is close to my favorite treadmill--but not close enough to make a dent in my insane sweating. Whereas when I run outside, even at a somewhat higher temperature, the moving air due to my body traveling through it, plus the breeze, makes an enormous difference in how sweaty I get:

  • Treadmill: My t-shirt is almost 90% soaking wet.
  • Outside: My t-shirt is 25% rather wet.

So, for that reason, outdoor running is actually, for me, the "lazier" thing to do, in that the experience is much more enjoyable since I am not overheating so much.

That said, the benefit of the quantifiability of my pace (since I don't own a GPS watch) on the treadmill is a great advantage, and it is much easier to train toward certain pacing goals on the treadmill.

  • 2
    Owning a treadmill helps even more in the heat and sweat department. I have a treadmill in my basement which allows me to point a large floor-fan at me which generates more wind than running would and I don't have to wear a shirt at all!
    – Haphazard
    Commented Aug 26, 2011 at 13:11
  • Good point! I was thinking mostly in terms of gyms that are not all that cool and don't have big fans pointed at the treadmills. But yes, home treadmills allow essentially total customization. You've got a great set-up.
    – Chelonian
    Commented Sep 1, 2011 at 5:09

The unevenness of the ground outside can cause you to workout different muscles.

  • Not true, you exercise the very same muscles.
    – Boris
    Commented Jun 21, 2012 at 22:09
  • I'm surprised more haven't mentioned this. I would think that if you're running outside, cornering, dodging pedestrians and trees, going up onto the pavement and down again, etc. you'll be working a much more varied group of muscles than running in a perfectly straight line on a treadmil. That said, I can't offer any studies or actual evidence for or against this idea. (can anyone else? @Boris?)
    – Molomby
    Commented Sep 28, 2012 at 2:37

Using landmarks [buildings, trees, signs, etc.], you can do interval sprints easier than having to deal with treadmill settings.

  • 1
    I would argue that most modern gym equipment can handle this for you
    – Mild Fuzz
    Commented Mar 4, 2011 at 16:35

You can multi-task if you go outdoors!

  • At my old job, I used to run to the post office to drop off mail.
  • You could end your run at the grocery store and then walk back with groceries as your cool-down.
  • It's easier to do a hill workout naturally than constantly pushing the buttons on a treadmill especially if you want to do a really steep hill (which can take FOREVER on the treadmill to adjust)
  • You could run to friend's/relative's house and have them prepare you a nice post-run meal ;-) and then have them drive you home or you could run back
  • You can scope out the fine guys running with their shirts off or fine girls running in their sports bra (I once saw my vice president working out in her sports bra at our gym, that was awkward to see so much skin on a co-worker but she did have a nice six-pack...)

I have been running for over twenty years and I do not see enough emphasis here on the psychological benefits of running outdoors. Running outdoors is a great stress reliever, running on a treadmill...not so much.

  • I think it's too personal for a blanket statement. I feel less stress after a treadmill run than out on the street for one. especially when considering I don't have to contend with traffic or traffic lights. I hate running in place for example. Commented May 25, 2011 at 7:00
  • @TheRealBill, you hate running in place but prefer a treadmil?? :P (Yeah, yeah.. at the lights. Just a funny way to put it I thought.)
    – Molomby
    Commented Sep 28, 2012 at 2:40

I've been going to gym for around 4 years, where I sometimes run on a treadmill, but I don't really enjoy it for longer period of time. But about 3 months ago, I started running outdoors every day and I totally love it.

For me the biggest plus is, that I hafe to finish the track I choose. If I feel good, I take a longer track around the park and there's just no way other than running the whole thing. On a treadmill, it's easy to just stop for whatever reason (you might need to go to toilet) and don't get back on again. But when you're 2 miles from home, you still have to get home.

Another great thing are checkpoints. For example you're running and you're getting really tired, so you can say to yourself ok I'm going to run to that tree and then take a little break. It gives you much better motivation when you're running towards something.

Or you might be running up very long stairs and you say 40 more steps, and you can see how you're progressing towards the end. While running on a treadmill, you can only monitor time/distance, which isn't really a good motivator, at least for me it isn't.


Hamstrings. When you're running on a level treadmill, you're essentially hoping up and down on a moving belt.

When running outside, you're also pushing yourself forward (hip extension), which recruits the hamstrings more.

You can overcome this by increasing the incline on the treadmill, but it's still a difference that I didn't see mentioned here.

  • 1
    +1 - Exactly -- no hip extension is required on a treadmill to propel your body forward. The belt does it all so the largest muscle in your body (glute max) isn't required to extend your leg on a treadmill...
    – Mike-DHSc
    Commented Mar 21, 2018 at 1:23

I do both. I find the treadmill a very nice alternative on days with nasty weather. Also, I tend to use the treadmill for a while if I'm just recovering from an injury. Nothing sucks more than being 5 miles from home/transportation and getting re-injured.

One drawback, for me at least, is that treadmills tend to give you up-to-the-minute distance statistics: 1.2 miles... 1.3 miles.... 1.4 miles... and time statistics: 25:46, 25:47....

There is something about that that completely gets into my head. I can run for 30, 40, 50 minutes outdoors with no problems whatsoever. Have me watch the clock on a treadmill and there's something about it that gets completely inside my head. By the 15 minute mark I'm thinking I'll never make 20 minutes... "You mean I feel like this at the 15 minute mark? How will I ever get 'x' far?"

It's hard not to notice these little incremental changes since the treadmill is designed to prominently display it to you. I would prefer it just flash statistics maybe every 5-10 minutes or so rather than always being present.

Running outside, I have to deliberately check my fitness tracker for a time and/or distance check. Most of the time, I don't even really care. I might look down, especially when running trails or in a place with a lot of scenery, and say, "Wow! It's already been 45 minutes?!"


There's certainly injury-prevention benefits depending on how many miles you are running.

  • Having a change of terrain is great for strengthening all the little stabilizing muscles in your feet and legs.
  • Varying the surface you run in (variable stimulus to you legs) ensures that you never become complacent and are more resistant to injury.
  • There are plenty of accidents that happen in gyms and treadmills. Running at a decent clip while watching Netflix is bound to end in disaster.

Of course, there are counter-arguments for each of these points, and you might be more willing to fall off your treadmill than to be mugged if you take a wrong turn. Ultimately, both training environments have advantages and disadvantages, but I believe the benefits of running outside far outweigh those of running on a treadmill.

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