Because it is mainly produced in Baoding, Hebei Province, it is also called Baoding Iron Ball. Baoding fitness ball, that is, Shouxing brand iron ball, began in the Song Dynasty and has a history of 800 years. It is a precious tribute of Ming and Qing dynasties. This product can make a crisp and pleasant sound, which is called "male and female" ball and is a traditional national product. Antique, elegant and generous, it has the functions of strengthening the body and prolonging life, and is suitable for all ages. It is a fine gift for relatives and friends, and is called "the East". It is not only a medical and health care instrument, but also has high ornamental and collection value. The operation method is: put a pair of iron balls in the palm of your hand and stir them with five fingers to make them rotate clockwise or counterclockwise. Playing ball games with Baoding fitness ball can strengthen the body and prolong life. Generally, two balls (three, four or even five balls for high-skilled people) are placed in the palm of your hand and moved with five fingers to make the balls rotate clockwise or counterclockwise, supplemented by arm or whole body movements. You can sit and lie down, close your eyes, adjust your breathing, practice quietly, or jump while walking. The ball moves with the fingers, the fingers move with the heart, the sound of the ball is crisp, the bones and muscles are relaxed, and the body and mind are happy. Long-term practice makes you strong.

The current Baoding iron ball is developed through improvement and innovation on the basis of following the ancient production technology of Ming and Qing Dynasties, with finer technology and more scientific structure. It has the fitness function of conditioning spirit and strengthening bones and muscles. According to the meridian theory, there are three meridians on the side of the palm. The exercise of fitness ball in hand has a good stimulating effect on these acupoints and meridians, which can dredge meridians, adjust qi and blood, restore autonomic nerve function, relieve mental fatigue and have a certain effect on prolonging life.

There is no doubt about the fitness function of iron ball. Professor Huang, director of the physical therapy room of the PLA General Hospital, observed the patients with hypertension, cervical spondylosis and scapulohumeral periarthritis, and found that the fitness ball had the following effects before and after 30 minutes of exercise: First, it had antihypertensive effect on patients with hypertension. 15 The average systolic blood pressure before exercise was 153.4, and the average diastolic blood pressure was 92. After three months of exercise, the average systolic blood pressure 133 decreased by 20.4, and the average diastolic blood pressure decreased by 9.2. The symptoms of headache and dizziness were relieved to varying degrees, and sleep was improved. Second, it has a certain brain-strengthening effect. By measuring the response speed of patients' brains to light stimulation with instruments, the average brain response speed of 15 hypertensive patients is 386.6 milliseconds before exercise, which is about twice as slow as that of healthy people, and 276.6 milliseconds after exercise, which is 1 10 milliseconds shorter than that before exercise. The patient's brain reaction speed is obviously accelerated, and his memory is improved. Third, it has the function of strengthening physical strength. The grip strength of 15 hypertensive patients before and after exercise was measured. The results showed that the average grip strength of patients before exercise was 2 1.8kg, and that of right-handed patients was 27.0kg After three months, it was 25.5kg and 3 1.9kg respectively, which indicated that the physical strength of patients was enhanced after exercise. Fourth, it has the function of strengthening blood circulation. Before and after the 30-minute fitness ball exercise, the temperature of palm Laogong point and shoulder joint of patients with cervical spondylosis and scapulohumeral periarthritis was measured. It was found that the skin temperature increased in different degrees, with an average increase of 0.760C at palm Laogong point and 0.670C at the front of acromion, and the pain symptoms of patients also improved.