1. First of all, I didn't do any warm-up exercises before running.
When the muscles are relaxed, the running speed is suddenly increased, which leads to the tension of calf muscles. If it is a middle-long distance race, due to excessive exercise and muscle strain, the tibia and fibula membrane of the calf will be torn and injured.
Secondly, I didn't stretch well. I didn't relax my muscles in time after running fast, and too much lactic acid caused muscle pain.
3. Finally, other reasons. The causes of leg pain are more complicated: the running ground is too hard, the running shoes have insufficient cushioning force, and the landing action is wrong, which will cause great impact on the calf and lead to leg pain.
Extended data:
(1) Try to choose a soft venue for morning exercise and fitness running. It is best to practice running on the track of the sports ground instead of running on the hard ground.
(2) Don't wear hard shoes when running. Try to wear shoes with soft soles and thick soles, preferably sports shoes and rubber shoes. You can wear cloth shoes when you don't have rubber shoes, but don't wear hard shoes and plastic shoes.
(3) Running posture should be scientific and reasonable. The heel should land first and quickly transition to the sole of the foot, so as to do a good job of buffering and reduce the resistance when landing. The rear pedal of the leg should be stretched. When your feet touch the ground, you should make good use of the cushioning force, not too hard, so that when you run, people feel that your feet are light and elastic, and you can also reduce the burden on your feet, which can last and avoid pain.
(4) When running, the shoelaces should not be tied too tightly, otherwise it will hinder the blood circulation of the feet. Soaking feet with hot water often, at least after running in the morning and before going to bed every night, can reduce the viscosity of lower limb foot muscles, enhance the elasticity and extensibility of joint ligaments, and prevent pain, which is beneficial to morning exercise the next morning.
(5) Before and after participating in the morning exercise fitness run, warm-up and finishing activities should be done well, especially the muscles, tendons and ligaments of hip joint, knee joint, ankle joint and lower limbs should be fully active before participating in the morning exercise fitness run. These are also very important for protecting feet.
References:
Baidu encyclopedia-running