Disadvantages of the treadmill: If you are used to running at a faster speed, if people's running rhythm can't keep up with the treadmill, it is easy to cause different degrees of knee injury.
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Safe use
You should have a physical examination before exercising in any health club. If you have a medical history or a history of drug allergy, you need a doctor's certificate. Safety always comes first. Wear appropriate clothes, especially sports shoes, and be sure to choose a pair of sports shoes that are comfortable for your feet.
Before using the treadmill, check whether the treadmill is placed smoothly and whether the countertop is dry. Before starting exercise, stand on the pedals on both sides of the treadmill with your feet and clip the emergency brake clip on your clothes. When all debugging is completed and the treadmill starts to rotate, put your feet on the table of the treadmill. If it is the first time to use it, you need to put your hands on the handles on both sides.
When exercising, keep your eyes on the front, don't turn your head suddenly, and don't look back, or you will lose your balance. If you have a bad sense of balance, don't carry heavy things when running.