Raising the chair so that the thighs are parallel to the ground can reduce the pressure on muscles, tendons and bones and prevent musculoskeletal diseases; Choose an armchair with a rolled-up towel or headrest at the waist; Hands, wrists and forearms are in a straight line, so that the elbows are at right angles when the forearms are placed on the desk; Keep your head and body straight and lean forward slightly; Elbows should be close to the body, and it is appropriate to bend 90- 120 degrees; The shoulders are relaxed and the upper arms naturally droop; Put your feet flat on the floor; This chair had better be padded.

2, often walk around

Mayo Clinic in the United States found that the body can withstand the same sitting position for 20 minutes, and then it will feel uncomfortable. It is recommended to stand up, stretch or walk every 15 minutes and change the sitting posture for at least 30 seconds.

Step 3 dry-clean your legs

Hold a thigh root tightly with both hands and massage it down to the ankle with a little force. Then, rub back from ankle to thigh root. Rub the other leg in the same way and repeat it several times. This method can make joints flexible and enhance leg muscles and walking ability. It can prevent varicose veins, edema and muscle contracture of lower limbs.

Step 4 kick your leg

When holding a tree or supporting a wall, first swing the calf forward, so that the toes are tilted forward and upward, and then swing backward, so that the toes are stressed backwards, and the feet are straight and the legs are straight. When you throw your legs, your upper body is upright and your legs are exchanged dozens of times. This method can prevent lower limb atrophy, weakness or numbness, leg cramps and so on.

5. Rub your legs and stomach

Hold your opponent's calf with your palms, rotate and knead it, 20 times each time, and then knead the other foot in the same way. This method can dredge blood vessels and enhance leg strength.

6. Twist your knees

Feet parallel to each other, knees slightly bent, hands on knees, knees in circles. Turn left first, then right, 20 times each. Can be used for treating lower limb fatigue and knee joint pain.

7. Pull your toes

Sit up straight, straighten your legs, bow your head, bend forward, and pull your toes with your hands for 20 ~ 30 times. It can exercise the waist and legs and enhance the strength of the feet. Prevent foot weakness and fatigue.