When choosing and buying treadmills, consumers should not blindly pursue the grade of treadmills, nor should they choose out-of-date mechanical treadmills because of fashion. Instead, they should choose a treadmill suitable for their fitness needs according to their own fitness goals. Traditional mechanical treadmill, commonly known as "passive" treadmill, is a transitional product with "Chinese characteristics" developed in the 1980s when the concept of fitness was introduced from abroad to adapt to the national conditions at that time. The power source is that the user generates backward thrust through his arms, knees, ankles and related muscles to promote the treadmill to generate movement. This kind of exercise seems to consume more energy on the surface, but it produces more sports injuries than running in nature. Sports medicine experts say that running on the road, every 1000 meters, every foot has to hit the ground about 1000 times, ankle, knee and buttock are all shocked, which can easily lead to muscle sprain or ligament strain. When running on a mechanical treadmill, the human body, in addition to the shock caused by its own weight, has to bear additional backward torsion on the ankles, knees and buttocks, especially the tendons, to ensure that the running belt moves backwards. This additional torsion is the root cause of sports injury. Torsion excessively concentrated in the ligaments, joints and other key stress areas, tendon tissue in the stress area is more likely to produce chronic fatigue, thus breaking the local balance of the tissue and damaging its health. Turning sport into a kind of fatigue is the key factor to attack people's interest in sport. It is also the main reason why most sportsmen fail in sport. It is not surprising that more and more traditional treadmill users find that the more serious they exercise, the thicker their legs and the less strength they have in their joints. Our running fitness is methodological. Different running instruments and running modes will produce different fitness effects. If you are middle-aged and old people, you aim at strengthening muscles and bones, promoting blood circulation, medical rehabilitation and prolonging life. We suggest that you choose an electric walking machine, which is recognized by experts as the least injurious running equipment. Manufacturers have realized the seriousness of the problem and are speeding up the development of electric treadmills suitable for mass fitness to accelerate the elimination of traditional treadmills. At present, the popular home electric treadmill in the market has a speed ranging from 0 to 18 kilometers. The electric treadmill is most suitable for medical rehabilitation, children and middle-aged and elderly fitness. Compared with the traditional treadmill, the machine has the following obvious advantages. It is the most affordable treadmill for mass fitness and rehabilitation. Its folding and assembly is simple and convenient; folding machine only takes 2 seconds, and assembly machine only takes 1 minute, which is the company's latest practical new patent products, leading the industry. After opening the packing box, you only need to lift the main pillar gently with one hand to the appropriate position, fix it with two twists and turns, loosen the twists and turns to restore the main pillar, which becomes another horizontal folding mode of the machine. You can put it in the lower part of the home and occupy less family space. Reduce sports injury; electric treadmill is a healthy electric treadmill with almost zero sports injury. Medical experts say it can reduce the impact of traditional training methods on joints and avoid sports injuries. It has obvious advantages over running naturally. Using the electric walking function to balance and eliminate the load of joints can not only lose weight and keep fit, but also benefit the recovery of the body after injury. There are many benefits. When exercising, step up, heel landing first, moving forward at the same speed along the direction of running belt. Hands and feet imitate the movement of running: arm bending 90 degrees, shoulder as axis, waving back and forth, so as to achieve the effect of balanced exercise of all body muscles. Because the direction and speed of the running belt are consistent with the direction and speed of the foot movement, the torsion of the ligament position is offset. It's very comfortable to run. In this way, the convalescents, children and the elderly can maintain their physical balance, thus concentrating on safe exercise. If you want to increase the amount of exercise, you can also accelerate the speed of dancing hands and feet. For the purpose of rehabilitation and fitness jogging, the heart rate should not exceed 110 to 130 times per minute, and walking and jogging should be carried out alternately. Jogging on the machine gives exercise to the heart and muscles. This method is helpful for middle-aged and old people to gradually reduce excess body fat. Therefore, jogging is especially suitable for the elderly obese. When choosing and buying treadmills, consumers should not blindly pursue the grade of treadmills, nor should they choose out-of-date mechanical treadmills because of fashion. Instead, they should choose a treadmill suitable for their fitness needs according to their own fitness goals.