20 years old practicing muscle At this time, "conventional physical strength" obtained through muscle strengthening exercises will not disappear after the exercise is terminated. At the same time, the heart can increase blood transfusion through endurance exercise. In short, 20-year-old people can reserve "resources" for future physical health. This stage must pay attention to exercise, in order to maintain weight, otherwise it will be very difficult to lose weight after 30 years old. Exercise can be performed once every other day, such as Mondays, Tuesdays and Fridays, each time about 30 minutes to enhance physical exercise, the method is: try to lift heavy objects, the load is 60% of the limit muscle strength, until the muscles feel tired (10 to 12 times each time). If you do not feel tired after many exercises, you can increase the weight of the device by 10%, must make the main muscle groups (pectoral muscles, shoulder muscles, back muscles, biceps, triceps, abdominal muscles, leg muscles) have been exercised. 20 minutes cardiovascular system exercise, such as jogging, swimming, cycling and so on. 30 years old practicing flexibility At this point the body's joints often make some noise, which is a sign of joint disease. In order to keep the joints more flexible, you should do more stretching exercises. It is still performed once every other day, each time for 5 to 30 minutes of cardiovascular exercise (jogging or swimming), and the intensity should not be as large as at 20 years old. 20 minutes of physical exercise, compared with the age of 20, the weight of the trial is lighter, but the number of times to do more. 5 to 10 minutes of stretching exercise, focusing on the back and leg muscles. People who sit in the office must pay attention to stretching. Method is: supine, as far as possible to pull the two knees to the chest, insist for 30 seconds; supine, legs were lifted, try to lift, keep for 30 seconds. People in this age group can still perform various types of physical exercise. If you take a break for some time, you must follow the principle of “progressive and gradual†when you re-exercise. Before the age of 35, it is better to do electrocardiogram examination before exercising. 40 -year-old body shape People over the age of 40 who choose sports should not only help maintain good body shape but also prevent common age-related diseases such as high blood pressure and cardiovascular diseases. Work out twice every Monday and Friday, choose moderate-intensity exercise, jog, swim, ride a bike, and more. People above 50 years old maintain health Can do 10 to 15 minutes of exercise equipment, equipment weight than when 30 years old, too heavy, can damage health, but the number may be more. To prevent accidents, it is best not to use dumbbells, but use exercise machines; 5 to 10 minutes of stretching exercise, especially pay attention to the activities of the joints and those who tend to shrink the muscles; add a 45-minute physical exercise on Wednesday, can do push-ups , half squat, etc., repeated groups, about 20 times each. Recommended sports: tennis, long-distance skiing, swimming, jogging, golf, dancing, walking and more. Amalgamator Price,Dental Amalgamator,Dental Amalgam Price,Dental Amalgamator Machine Henan Hanchen Medical Technology Co., LTD , https://www.hanchenyiliao.com