https://zenwriting.net/leafend....1/why-no-one-cares-a
https://anotepad.com/notes/3ybd5b4c
The Advantages of a Curved Non Electric Treadmill Curved treadmills burn more calories since you're required to push the belt using your own energy. They also lessen the impact on joints, so they're a good option for runners and walkers with knee problems. They're not ideal for high-intensity exercises. Researchers have found that curved treadmills promote a narrower strike of the foot, which may cause injuries to the hamstrings and calves. Eco-friendly The