A strengthens the bone, causing the traction and gravity of the muscle to the bone, which not only changes the shape of the bone, but also improves the mechanical properties of the bone.
B improve muscle strength, thicken muscle fibers and increase muscle volume. Improve the nervous system's ability to control muscles, which is manifested in the improvement of muscle reaction speed, accuracy and coordination.
C strengthen the stability and range of motion of joints, increase the flexibility of joints, increase the thickness and bone density of articular cartilage, and enhance the load resistance of joints. In a word, regular physical exercise can enhance people's activity ability and promote the function of sports system.
Middle and long distance running is a sport of speed and endurance. Middle and long-distance running can improve the function of respiratory system and cardiovascular system, develop endurance quality, enhance physical fitness, and cultivate perseverance and tenacious will. Long-distance running can also prevent and treat some chronic diseases and prolong life.
Principles to be followed in physical exercise:
The principle of consciousness. People who take part in physical exercise must have clear fitness goals and consciously engage in physical exercise.
B. the principle of comprehensiveness. Physical exercise must pursue the harmonious development of body and mind to delay aging.
C cycle principle. Physical exercise must be persistent, making it an important content in daily life.
The principle of moderation. Physical exercise should have proper physiological load. The right amount is relative, and it is carried out rhythmically on the basis of gradual progress.
E. the principle of pertinence. Physical exercise must be carried out according to the individual's actual situation.
Gradualism principle. Physical exercise must follow the natural development of human body. We can neither rush for success nor rest on our laurels. We should gradually accumulate the effect of exercise.
Physical exercise has a great positive effect on people's body and mind;
Physical exercise can enhance the function of cardiovascular system and heart.
Physical exercise can enhance the function of respiratory system and lung function.
C can enhance the function of nervous system and improve the balance and flexibility of nerve activity. Moderate exercise can completely inhibit the original excited nerve cells, rest more fully, and improve work efficiency at work.
D Regular physical exercise can make muscles and bones get more nutrition, make joints more flexible and reduce body fat.
E can promote metabolism and make people feel happy and energetic.
F Regular physical exercise can improve human immunity and reduce diseases such as colds.
G can relieve inner tension, make body and mind relax moderately, and always maintain a relatively stable and positive state.
H plays a positive role in promoting the formation of good psychological quality.
Physical exercise also has a positive effect on the treatment of mental illness.
What are the benefits of regular exercise for the growth and development of the body? Long muscle strength is a cheap asset. Regular exercise can improve physical endurance, promote physical growth, and increase coordination and strength.
Science Question: What are the benefits of taking part in physical exercise regularly? Enhance your body resistance, delay the decline of your body function, and make your life more quality!
What are the benefits of physical exercise for your health? As the saying goes, iron cannot be made into steel, and it is unhealthy for people not to exercise. Proper physical exercise is good for health, especially for teenagers in their growth and development period.
The body develops fastest in adolescence. Physical exercise can make all organs in the body get enough oxygen and nutrition to promote their growth and development. Exercise can improve human metabolism, promote bone growth, increase bone density, strengthen muscles, improve cardiopulmonary function and increase vital capacity. People who exercise regularly, their nervous system regulation function is strengthened and their skills are more agile and flexible. In addition, physical exercise can burn fat and increase muscle, so teenagers can lose weight and build a good figure by insisting on physical exercise.
Physical exercise can also bring people a sense of pleasure, relieve tension and reduce the pressure brought by study. Because physical exercise can improve the function of nervous system, enhance memory and reaction ability, and improve learning efficiency; At the same time, physical exercise can make teenagers form optimistic mood and cheerful personality, and reduce and avoid depression and anxiety.
The cultivation of emotional and social skills is very important in adolescence. Teenagers can cultivate good qualities such as courage, hard work and hard work in sports, and they can bravely pursue their dreams and persist in their efforts. In addition, participating in some team sports competitions can make teenagers feel the sense of competition and the fruits of unity and cooperation, and help them learn to coordinate interpersonal relationships, learn to compete, and learn how to show their talents and strength.
In a word, life lies in exercise, and health cannot be separated from exercise. Physical exercise can help teenagers overcome physical and psychological obstacles and promote physical and mental health.
Regular physical exercise has at least four advantages:
1, relieve worries and rejuvenate. The best antidote to anxiety is exercise. When you are worried, use more muscles and less brains, and the result will surprise you. No one can do strenuous exercise in the gym or climb mountains, and still be upset about what just happened. No matter who you are, exercise can lift your spirits. The healthier a person is (including mental health), the stronger his ability to resist diseases and work and family pressures.
2. Lose weight and improve insulin resistance. Obesity is often accompanied by hypertension, type 2 diabetes and dyslipidemia, which are all risk factors of cardiovascular diseases, and are called insulin resistance syndrome or syndrome X. An American study confirmed that the consumption of body energy is inversely proportional to the occurrence of type 2 diabetes. Walking at an agile and lively pace for 65,438+0 hours every day can reduce the incidence of type 2 diabetes by half, and those who use aerobic exercise and aerobic exercise have the lowest risk.
3. Promote myocardial perfusion and reduce the risk of male stroke. 67 patients with risk factors of myocardial infarction, angina pectoris, heart surgery and coronary heart disease were treated with group exercise therapy at Kyoto University in Japan. Exercise prescription depends on the individual state of the patient. Sports include jogging, walking, stretching, table tennis, mini tennis, outing and skiing, with aerobic exercise as the main activity. After an average of 70 months of follow-up, it was confirmed by scientific determination that 54.8% patients' myocardial perfusion was improved and their depression tendency was obviously reduced. A new study by Lee of Harvard University in the United States also shows that inactivity is as important a stroke risk factor as smoking or hypertension, and moderate exercise can almost halve the risk of stroke in men.
4. Enhance bone load and slow down osteoporosis. At the 3rd International Symposium on Osteoporosis from 65438 to 0999, Frost, an American orthopedic professor, introduced a new concept of osteoporosis-muscle mass (muscle volume and strength) controlled by nervous system is an important factor to determine bone strength (including bone mass and bone structure). Another study in Australia found that the weaker the quadriceps femoris, the more bone loss. It can be seen that exercise can not only maintain muscle strength, but also slow down decalcification and osteoporosis of bones.