1. Fascia relaxation (foam axis): break the trigger point, improve the adhered fascia and muscles, and prevent some muscle groups from being over-activated.
2. Active independent stretching: increasing the ductility of soft tissue through interactive inhibition can strengthen the range of motion of joints and the flexibility of muscles.
3. Static stretching: Most people define "stretching" as stretching a certain muscle group for a period of time. Daily static stretching can increase the flexibility of stretching muscles.
4. Dynamic stretching: imitate an action, use force and momentum to move joints, and enhance the control performance of neuromuscular system.
In a completely healthy body, there is no obvious harm in not doing stretching after exercise. The landlord's question can be asked like this: What is the harm of not stretching? Most people who don't exercise regularly and quite a few people who exercise regularly actually have a lot of muscle strength imbalance, bad posture, different flexibility of a certain part of the body and so on. These conditions interact and form a vicious circle. If they are not improved, injuries will break out over time.
Sticking to scientific stretching training can:
1. Improve muscle imbalance.
2. Increase the range of joint activity.
3. Relieve the tense muscle groups.
4. Relax joint pressure.
5. Help maintain a healthy muscle length.
6. Enhance the efficiency of nerve recruitment and improve sports performance.
So stretching is a comprehensive training to detect/restore/maintain physical condition. If you never stretch, you can try and you may find some potential physical problems. If you already have some conditions, such as the relative overactivity of quadriceps femoris and adductor muscles. So I will add some different forms of stretching exercises and change my strength training plan accordingly. In a word, stretching is also a systematic and gradual physical training method. Stretching is not a god, but it definitely has its own function.