? Action one.
1? Put your head in your hands and stick it to your ear.
2? Open your arms back, as far back as possible.
3? Repeat 30 times before and after.
Action two?
1? Cross your hands over your head and open your arms.
2? Keep your arms straight up, try to stick to your ears, and don't let go of your hands.
3? When the arm reaches the highest position, hold for 3-5 seconds.
4? Repeat up and down 15 times.
Action three?
1? Feet a foot away from the wall, upper body close to the wall, legs slightly bent.
2? Look straight ahead, chin slightly retracted.
3? Open your arms and stick them on the wall.
4? Stretch your arms up.
Action four?
1? Stand with your feet together, your shoulders open, and your arms naturally droop close to the wall.
2? Look straight ahead, close your chin and abdomen.
3? Station 15 minutes
Action five?
1? Use a corner or door frame to lift the boom to a position slightly below the shoulder.
2? Move forward and let the center of gravity move forward.
3? Keep it for five minutes, remember to look up and chin down.
4? Exchange weapons
Not only should we pay attention to humpback, but we should also develop good sitting habits in peacetime.