As the saying goes, if you go too far, your health is the capital of the revolution. Once there is a big problem in your body, you will be in trouble. Therefore, we must be more careful when exercising. Don't lose too much weight because of small things. You obviously want to exercise and keep fit, but because of the incorrect way, it has caused great harm to your body.
First of all, it is not recommended that you run on the treadmill, which is particularly harmful to your knees. The biggest problem with treadmills is the constant speed. If the speed is slower, it will fall easily. Running at the same speed for half an hour to an hour is unbearable for a non-professional athlete's knee joint. Professional runners are different from ordinary people in muscle strength around the knee joint, body flexibility, body coordination and balance. If ordinary people's knee joint strength and muscle coordination can't keep up, treadmill exercise will cause shock damage to meniscus and cartilage of knee joint.
Climbing mountains and stairs will aggravate knee joint wear. Mountain climbing is a good aerobic exercise, which can exercise our cardiopulmonary function and the strength of leg muscles. But it is not conducive to the protection of the knee joint. When going downhill, the knee joint should bear the load of 2-5 times of the usual weight, especially the patellofemoral joint is more worn. Repeating the same action will also increase the pressure on joints such as knee joints, so there is a saying that "going up the mountain is easy, but going down the mountain is difficult".