The standard for primary school students to lift their legs for one minute is about 100 to 180. Leg lifting is a kind of fitness exercise. Straighten your back, look straight ahead, lift your legs alternately, and land your forefoot to keep your body stable. Swing your arms vigorously with the rhythm of leg lifting and keep the fastest speed. Breathe naturally and feel the movement. The faster the speed, the faster the heart beat and the faster the breathing.

Methods of raising pupils' legs

Lift one leg to a higher position. In order to keep the balance of the body, the arm should be raised accordingly. The angle between the thigh and the abdomen is preferably 90 degrees. When lifting your legs, you should pay attention to abdomen, and your legs should take turns. Generally, the intensity of in-situ leg lifting exercises requires more than 50 times in each group, and five groups of leg lifting exercises should be done every day, each group 100 times.

Action points: the upper body stands upright or leans forward slightly, the arm swings back and forth, the thigh swings forward to the level, and slightly drives the same side of the thigh to move forward slightly, the big legs are closed as far as possible, and the heel is close to the hip to dig out the mud zinc. While lifting the leg, the thigh of the other leg actively presses down, straightens the leg and feet to the ground, and the center of gravity should be raised and padded with the ankle.