How do junior high school students practice abdominal muscles and what basic training should they do?

Abdominal rolling

Exercise area: abdomen and waist.

Action essentials: 1, roll your abdomen and inhale;

2. The chin is attached to the chest, including the chest and abdomen.

Action repetition: each group 15, stick to 2 groups.

Cross the abdomen in the air

Exercise area: abdomen and waist.

Action essentials: 1. Exhale after rolling the abdomen, and the other knee and elbow collide.

Action repetition: each group 15, stick to 2 groups.

Cross your legs on your back.

Exercise site: abdomen.

Action essentials: 1, abdominal inhalation;

2, straight knees crossed.

Action repetition: each group 15, stick to 2 groups.

Lie on your back and lift your legs (bent legs)

Exercise site: abdomen.

Action essentials: 1, lift and exhale;

2. Let go and inhale.

Repeat: 30 seconds for each group, and hold for 2 groups.

Start from both sides (left side)

Exercise area: abdomen and waist.

Action essentials: 1, abdominal force first, abdomen in and breath out;

2. Lift both ends at the same time.

Action repetition: each group 15, stick to 2 groups.

Starting from both ends horizontally (right)

Exercise area: abdomen and waist.

Action essentials: 1, abdominal force first, abdomen in and breath out;

2. Lift both ends at the same time.

Action repetition: each group 15, stick to 2 groups.

Prone opening and closing jump

Exercise area: abdomen and waist.

Action essentials: 1, abdomen, keep your body straight;

2. Adjust the breathing rhythm.

Repeat: 60 seconds for each group, and hold on to 1 group.