LifeSpan’s Fitness TR7000i is a commercial-grade treadmill—you’ll find this model in gyms and fitness centers, and it’s powered by a heavy-duty 3.5-hp motor. Not only does the Echelon ...

I tested several popular treadmills by running, jogging and walking on them, evaluating key factors like max speed and incline. Since treadmills are a significant investment, I carefully evaluated ...