The Assault AirRunner is unlike anything else on our list of the best treadmills. Its non-motorised design and ballbearing-powered curved running deck respond to user input, meaning flitting ...

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 ... a bed or sofa. The Assault Fitness AirRunner ...

And, while there's nothing wrong with a good ol' chest day, if you're among those who still think of cardio machines as merely pre-lift warm-up tools—or, even worse, as instruments of self ...