What are the benefits of physical exercise for students?

Physical exercise refers to some physical movements and exercises, and physical exercise is an indispensable part during the student period. Appropriate physical exercise during the learning process can not only exercise physical health, but also relieve the pressure of learning. It is a better way to relieve stress. At the same time, it can also exercise willpower and personal physical fitness, promote students' physical development, and help them grow taller.

Junior high school is an important turning point in a person's physical and mental development towards maturity. During junior high school, body shape and physiological functions will enter a peak period of development. There are many unprecedented changes in the physiological and psychological aspects, and people feel obviously grown up. The most effective and positive way to promote physical and mental health during this period is physical exercise. During physical exercise, you will experience the pleasure of exercise, the excitement of competition, the joy of cooperation, the excitement and happiness brought by bravery and tenacity, victory and failure, setbacks and courage, struggle and success, and you will truly feel the promoting effect of physical exercise on the functions of various organ systems in the body. Regular and reasonable physical exercise can promote physical growth and development, increase height, weight, and improve respiratory and cardiac function; it can also regulate the flexibility of nervous activity and enhance the ability of physical and mental activities. In short, physical exercise can not only help you get a healthy body, but also bring you psychological satisfaction and improve your psychological quality and social adaptability, and promote the healthy development of your body and mind.

Let’s first look at the external growth. From infancy to adulthood, the head will double in size, the torso will triple in size, the upper limbs will quadruple in size, and the lower limbs will quintuple in size. Relatively speaking, children have larger heads and shorter limbs. By the time a person reaches middle school, the size of their head is close to that of an adult's. Next (middle school period) the main growth occurs in height, weight, chest circumference and limbs.

However, our bodies do not grow unconditionally as we age. It is closely related to genetics, nutrition, environment, sleep, etc. When the above conditions are similar, physical exercise is a very important factor affecting growth and development. Regular physical exercise can play a positive role in promoting the growth and development of various organs of the body.

1. The impact of physical exercise on bones:

Physical exercise improves bone blood circulation, strengthens bone metabolism, increases bone diameter, thickens bone texture, arranges bones regularly and neatly, makes bones stronger and tougher. With the good changes in bone morphology and structure, the bone's ability to resist fracture, bending and compression is greatly improved. The reason why the human body can grow taller and bigger is that the medullary cartilage between the ends of the bones and the backbone continues to proliferate before ossification is completed. It can be seen that active exercise during childhood and adolescence, that is, before the epiphyseal cartilage is completely ossified, helps to grow taller. A strong physique and slender limbs are the manifestation of external beauty that many young people dream of.

2. The impact of physical exercise on muscles

Physical exercise can increase muscle size. The muscles of athletes in strength sports such as weightlifting and bodybuilding are significantly larger than those of normal people. This shows that physical exercise has a very obvious effect on muscle volume. Generally speaking, muscle volume can be increased as long as strength training is performed, and the volume of any muscle will increase. Muscle strength is directly proportional to the cross-sectional area of ​​the muscle. As the muscle volume increases, the strength also increases accordingly. Moreover, the effect of physical exercise in increasing muscle strength is also very obvious. Several weeks of strength training will cause a significant increase in muscle strength.

Regularly performing muscle stretching exercises during exercise can increase muscle elasticity, thus avoiding various sports injuries caused by intense muscle contraction and stretching during daily activities and physical exercise.