A tension belt of 45 pounds means that the rated Zhang Liwei of the tension belt is 45 pounds. According to the conversion relation, 1 lbs is about 0.907 kg, so the tension of 45 lbs tension belt is equivalent to 40.8 15 kg. This means that an object with a weight of 40.8 15kg can be lifted by using this tension belt. Tension belt is usually used in fitness, physical training and other fields, which can provide appropriate resistance and support and help strength training and physical exercise. Therefore, the concept of 45-pound tension belt means that it can lift an object with a weight of 40.85438+05 kg.