Around the age of seven, when children just start primary school, they become extremely active as their physical condition and motor functions develop and their range of activities expands. Their small muscles grow well, hand-eye coordination gradually improves, and they enjoy practicing skills that engage large muscle groups. Taking children outdoors for sports and games regularly not only boosts their physical fitness but also satisfies their natural urge to move. Nevertheless, children’s organs and tissues are not fully mature, with physiological characteristics distinct from adults, so certain sports are not suitable for them.

Tug-of-war

Tug-of-war involves high intensity and intense competition, demanding tremendous static strength and endurance. Children’s hearts are underdeveloped with delicate myocardium, unable to withstand such strenuous loads. Moreover, tug-of-war easily causes wrist dislocation and soft tissue injuries.

Long-distance running

Human height mainly depends on the growth of bone cells across the body. Long-distance running consumes massive energy, creating a nutritional deficit in children, slowing bone cell growth and hindering normal physical development.

Handstands

Although young children have relatively strong intraocular pressure regulation, frequent handstands or overly long single handstand sessions will damage the eyes’ ability to regulate intraocular pressure.

Arm wrestling

Children have loose joint capsules in their limbs with poor stability, making sprains highly likely during arm wrestling. Additionally, arm wrestling inevitably leads to breath holding, just like tug-of-war. This sharply raises intrathoracic pressure, obstructing venous blood return to the heart. When the accumulated venous blood surges into the atria afterward, it delivers excessive stimulation to the heart walls.