Winter Training: Faster and Safer Indoors?

This article came from the New York Times Web site on March 4, 2010. People are beginning to question whether working out in the gym builds up your strength compared to working out in the outside world. The author explains how running on a tredmill and running outside are two completely different things. The wind copacity outside strengthens you more even if you run more on a tredmil. How can we know if this study is really in effect? Everyone's bodies are different in many ways, and whether they may run better on a tredmill than persistantly running outside, that does not change the effects of how it may work. Running on a tredmill is just the same as running outside. For example, you are working out the same muscles whether using the bicycle at the gym or actually riding one. The question still lives on whether there remains an immense difference between indoor working out or outdoor.