What actions can teenagers do to help exercise their muscles at home without equipment! Time? Who can help plan it? Only at nine o'clock in the evening

In addition to the common in-situ push-ups, sit-ups in bed and skipping rope.

Against the wall: the back and heel of the whole body are flush with the wall, and the hands are bent down to touch the ground as much as possible to stretch the legs.

Then there is the in-situ handstand: this handstand is supported by both hands, depending on your ability to choose one. Promote blood circulation in the brain and exercise the whole body muscles.

In addition, there are methods of posture movement, as shown in the figure below. Standing exercise can exercise the coordination and toughness of the whole body muscles, but it takes a lot of endurance to persist, because many people can't even persist for a minute.

Primary: Elbow to the ground, back straight, head down (don't sink your waist) for 60 seconds.

Intermediate: Side supports on elbows and forearms keep your shoulder blades pulled down and contracted, and your upper back forms a pocket.

Difficulty: lean back 60 degrees, keep still, and lift your feet to further increase the difficulty.

The time period of these exercises should be adjusted according to your physical condition, and you can cross practice appropriately. Of course, you can choose which muscles to exercise. If you feel sore muscles after a day or two, persisting in exercise will greatly improve those muscles.