Something to think about when you feel the Winter weather is forcing you to the treadmill for your daily run.
Chris Smith asked sport scientists Dan Gordon whether you get the same benefits from hammering along the pavement as you can from jumping on a treadmill in the gym. Dan – In the broadest sense, yes. In the broadest sense you will get cardiovascular adaptations and so on and so forth. Actually, if we look at it metabolically, there’s quite a big difference. If you run on a treadmill and you just use a treadmill in the gym and run at the same speed, so let’s say you monitor you speed with a GPS watch outside,…(more)
Source: Is there a difference between running outside and on a treadmill? | Science Questions | Naked Scientists
“When you’re in a gym and you’re on a treadmill that heat dissipation is much much harder because you’re already running in a warmer room….”
This obviously wasn’t written by someone who lives in Arkansas. On even the coolest mornings, Arkansas summers are 10 degrees warmer than ambient gym temperature. And some gyms have fans in front of their treadmills.