Runners have long debated the difference between training on a treadmill and training on solid ground. “Belt turnover” is commonly cited as a factor that helps to move your foot backwards and thereby makes running on a treadmill easier than running on the road. At constant velocity, is this a real effect? If so, wouldn’t it be felt on any “moving” surface you walk on, such as a train or plane – or even Earth?
• It is all about who or what supplies the energy and does the work. On a treadmill, the runner does the work of moving their…
