First of all, I can tell you for sure: of course, you can use the treadmill or exercise bike.

Secondly, at the age of 52, the calcium loss is fast, and the body joints are relatively less flexible than when they were young. Therefore, whether it is a treadmill or a bicycle, there must be relative sports equipment.

Thirdly, the treadmill has a certain pressure on the knee and ankle, which is easy to be injured or sprained. Bicycles are relatively safe and have little potential damage to joints.

Running and cycling are good aerobic exercises, which mainly improve cardiopulmonary function, accelerate blood circulation, improve metabolism, and improve endurance, physical strength and willpower.

Running tends to lose weight all over the body and reduce body fat and weight.

You must have running shoes with padded soles when running.

Cycling can focus on strengthening your waist strength and thigh strength, thus improving the stability of the footwall as a whole, and you will feel stronger than before.

Wear shoes casually on your bike, but the soles should be hard and not too soft.

Ok ~ that's all.