(1) Physical exercise can promote growth and health. Physical exercise can improve the body's oxygen absorption ability, thus promoting the body's metabolism and detoxification process; Physical exercise can promote the blood circulation of the whole body, make muscles get sufficient nutrition, improve the metabolic ability of muscles, and make muscle fibers thicker, developed, strong, symmetrical and powerful.

(2) Physical exercise can clear the brain and improve learning efficiency. Physical exercise can increase the blood supply to the brain, improve the supply of blood sugar and oxygen to the brain, promote the metabolism of brain cells and improve the activity ability of cerebral cortex. Improve the excitability, sensitivity and reactivity of nerve activities, and improve the self-control ability of some autonomic nerves and organ activities.

(3) Physical exercise can promote personality cultivation and cultivate sentiment. Physical education can help students overcome various physical and psychological obstacles and cultivate their excellent qualities such as courage, determination and hard work. Exercise can regulate some unhealthy emotions and psychology, such as depression, depression and nervousness. Sports competitions, especially some collective events, require excellent quality and style of unity and cooperation, honesty and trustworthiness, discipline, striving for first-class, winning without arrogance and losing with grace.

(4) Physical exercise can improve immune function and disease resistance. Physical exercise can promote gastrointestinal peristalsis, digestive juice secretion, help the body digest and absorb, and can prevent and treat diseases such as habitual constipation and dyspepsia. Research shows that people who exercise regularly are less likely to get sick and live longer than those who don't exercise regularly.

2. Slogan of primary school sports meeting

(1) It is unusual to keep fit and be determined to succeed.

(2) unite with civilization and show elegance.

(3) Qi Xin worked together, achieved remarkable results, won the three armed forces, and was invincible.

(4) United and enterprising, we are the best and we are the strongest.

(5) I am great. I exercise.

(6) Exercise and be brave first.

I can be stronger, faster and higher.

(8) Work hard, carry forward the spirit of our class, study hard and strive for the first place.

(9) Make great efforts, forge ahead, surpass Liu Xiang, and start from me.