1, as long as you feel comfortable and not tired, it suits your posture. About 94% people follow the ground with their feet, including some fast runners. Some experts believe that the posture with the sole on the ground first can reduce the chance of injury during running, so they insist that the posture with the sole on the ground first is the most correct running posture. Actually, it's not.
2. In fact, research shows that the two postures have their own advantages and disadvantages, and no matter which running posture, runners can't avoid being affected. People who press the ground with their knees may suffer from patellofemoral syndrome; Those who touch the ball with the front foot wear the ankle and achilles tendon, which may lead to achilles tendon disease, plantar fasciitis and stress fracture of the foot. Previous studies have proved that the most vulnerable parts during running are knees, ankles and achilles tendon. In another study, many women shook their knees, and those who landed on their heels shook even more. Compared with women with their front paws on the ground, the force transmitted to the knee joint during running is 16%, and these extra forces are mainly concentrated between the kneecap and the knee. However, runners with their forepaws on the ground are also in trouble, and their legs are under great stress. Runners in two postures just use different parts to cushion the pressure. The pressure on the ankle and achilles tendon of the runner who landed on the forefoot was 20% more than that of the other group. In fact, no posture is absolutely correct. As long as you feel comfortable running, it suits you.
Running should not be excessive.
Running for fitness at night, it is best to insist on it more than three times a week, and 30-60 minutes each time is enough. Especially at night, it is not advisable to exercise excessively. At night, yang declines and yin flourishes. Be quiet, excessive exercise will really affect sleep. If you exercise too much and sweat too much, it will also cause low immunity, weakness and illness.
Why run counterclockwise?
1, brain structure and brain function The human brain is divided into two hemispheres with different functions. The left brain dominates the activities on the right side of the body, and the right brain dominates the activities on the left side. In daily life, most people have developed the habit of working, writing and working with their right hands, while the left brain is mainly engaged in advanced thinking activities, thus greatly increasing the burden on the left brain.
In order to maintain the balance of the whole body, it is necessary to strengthen the function of the left leg dominated by the right brain, so most people think that the left leg is stronger than the right leg. In the competition, most athletes use their left leg as a back kick. When running a corner, because the left leg runs counterclockwise, the left leg can well overcome the centrifugal force of the body and avoid leaning inward. The strength of the right leg is less than that of the left leg. If you run clockwise, you will feel unstable and fall easily.
3. The center of gravity of the chest structure is on the left, and the human chest has a heart and lungs. The heart is on the left, while the right lung has three lobes and the left lung has only two lobes. In addition, the heart is filled with a greater proportion of blood, while the lungs are filled with lighter air. So the center of gravity of the chest is slightly left! When walking on the playground or riding a bike, the human body needs centripetal force. So turning left provides better centripetal force than turning right, which is a natural phenomenon of running counterclockwise!
4, the centrifugal force of the earth, in the process of the earth's rotation, inertia will cause centrifugal force. In the northern hemisphere, this deviation is to the right, which will cause the water to form a counterclockwise vortex when it flows downward. IAAF stipulates that running should be counterclockwise, because most competitions are held in the northern hemisphere. If it does not conform to the deviation of the earth's rotation, the human body is easily injured by uneven centrifugal force and the deviation of the earth's rotation.
5, the difference between the left and right legs People's feet, the left and right sides have their own functions. Share the role of the left foot to support the center of gravity; The right foot shares the role of mastering direction and speed. If the center of gravity is to the left, it is normal for you to step on the ground with your right foot to improve your speed and run counterclockwise. Clockwise and counterclockwise operation is reasonable. In fact, there is no need to worry about running clockwise or counterclockwise. It's best not to run in the same direction all the time. If you always run counterclockwise, it will cause excessive pressure on your left ankle, knee and hip joint, and you will be more likely to get injured in the long run. If you are used to running counterclockwise, you might as well run clockwise instead, or alternately run counterclockwise and clockwise to balance the stress on your left and right legs and relieve the boredom of running around the playground. At the same time, we can consider choosing an outer track with a large arc, because this can reduce both centrifugal force and imbalance.