There is a buffer device inside the treadmill, which can relieve the pressure on the knees during running. But many people will have symptoms of knee discomfort after using the treadmill, mainly because of speed and strength. When people run outdoors, the speed will be adjusted according to their actual situation and will not be disturbed by the outside world. The frequency and speed of the treadmill are fixed. When exercising on the treadmill, the focus is on a fixed position, and the movement mode of people will be controlled by the machine, and the speed and frequency will remain unchanged. In order to keep balance, the coordination of the body can't keep up, and the attention will be worn away all the time, with the increase of exercise time. It will lead to knee ligament strain, meniscus and cartilage will cause concussion injury, especially the latter two injuries are irreversible.
Correct use of treadmill. If you want to run without hurting your knees, it is recommended to run outdoors. Treadmill can only be used in special weather. Don't run on the treadmill for a long time. Try not to adjust the slope and keep the horizontal mode. Incorrect running knee and way are the chief culprit of knee injury. Don't keep up with the pace when running on the treadmill, which can slow down the running speed and the speed of the conveyor belt. Using the method of small steps and high frequency can reduce the pressure on the joints.
You must warm up and stretch before running. Beginners should step by step and exercise on the treadmill no more than 1 hour every day. If they feel uncomfortable with their knees, they need to stop urgently. And don't increase the amount of exercise at will, which will easily cause various injuries and diseases. Running on the treadmill must be combined with muscle strength and body coordination training, and the weight should be reduced to below 140 kg. Muscles can cushion the pressure of the body and maintain toughness.