Why muscles harden easily during exercise and exercise

This type of muscle soreness, which generally occurs 24 hours after a workout, is medically called"Delayed onset muscle soreness"。The soreness peaks 24-72 hours after the workout and is largely gone after 5-7 days. In addition to soreness, there is muscle stiffness, which can only be tender, and in severe cases, the muscles are swollen and hindered by movement.

Delayed muscle soreness can occur in any skeletal muscle after intense exercise, especially after long-distance running. Long-distance runners may have pain in the anterior extensor and posterior flexors of the hips, thighs, and calves, especially at the distal muscles and tendon junctions. After exercising a lot in the hot summer, in addition to muscle pain, symptoms such as dehydration, low calcium, and low protein can also occur.

The exact cause of this muscle soreness is not fully understood.

Most people believe that overuse of muscles can cause muscle soreness. Because the rapid increase in muscle tension and elasticity can cause physical damage to muscle structural components, as well as an increase in metabolism, an increase in the toxicity of metabolic waste products to tissues, and changes in the neuromodulation of muscles, causing muscle spasms and causing pain.

At present, the muscle hardness can be properly combined with the practice of yoga to help musculoskeletal flexibility.

Upstairs, "Wang Lin of China", the increase in the amount of blood inside caused the hardening of the cavernous body, not the muscles. Thank you.

Muscle is a kind of fibrous tissue, divided into skeletal muscle, smooth muscle, etc., skeletal muscle is connected with bone through tendons, tendons drive muscle fibers to contract, so that the volume of muscle tissue shrinks, thereby triggering bone movement, so that people and animals have the ability to move, and muscle tissue shrinks will become tight, and it will feel hard.

The muscles that are exercised are hard because the muscles are trained. Muscles bear loads, consume more energy, and have a large oxygen debt for a long time and high intensity, so lactic acid will accumulate in the muscles, which will change the internal environment of the muscles, such as a decrease in blood sugar.

At this time, the ability of the muscles to work decreases. This is a temporary normal physiological phenomenon and a response to the body's protective inhibition and a "self-defense signal". Arrange the appropriate amount of exercise and the intensity and density of the exercises.

The ability to relax the muscles should be mastered, and after each group of exercises, shakes, deep breathing, massage, hot baths, etc. should be used to fully relax the muscles and eliminate fatigue as soon as possible. Correctly grasp the technical essentials, pay attention to the coordination of muscle contraction and relaxation, and reduce unnecessary work and consumption.

If you want to build muscles, you need to use overload training methods. Now the general load is eight to twelve, and this load is suitable for most people. For example, if you have a 50kg volume and you can do up to 8 repetitions per set, you will need to train at that weight until you can easily complete 12 reps per set.

Well, now you're going to need to add weight. Of course, the standard is still to adjust to a maximum of 8 loads per group. Strength training is a gradual process, and it should not be rushed, as rapid load growth can lead to muscle strain and sprains, which is not conducive to continuous strength growth.

Given that you are only fifteen years old. I don't recommend that you pay too much attention to growing muscle, as this may affect your height growth. So as long as you usually bring training strength.

You can train your muscles after the age of 18, because men don't reach the peak of their strength until they are around 25 years old, which means that even if they are 18 years old, it's not too late, and there are still a few years left. Strength training should follow the principle of specificity, and whichever muscle grows will be trained. Deltto:

Push-ups, pull-ups, etc. The classification of leg muscles includes thigh muscle groups and calf muscle groups, and the training methods of the two muscle groups are also different. For abdominal muscles, it is sit-ups, hanging leg raises, etc.

However, you can also choose to go to a professional gym and use professional equipment for training.

It is normal for the muscles to be very hard, and my sister's muscles can make the taekwondo black belt kick casually, and it can be strong and resistant.

Reason: Muscles bear loads for a long time and with high intensity, consume more energy, and have a large oxygen debt, so lactic acid will accumulate in the muscles, which will change the internal environment of the muscles, such as a decrease in blood sugar.

At this time, the ability of the muscles to work decreases. This is a temporary normal physiological phenomenon and a response to the body's protective inhibition and a "self-defense signal".

The main manifestations are uncoordinated movements, distraction, etc., which indicates that the muscles have been fatigued, and if you do not pay attention to adjustment and rest, the muscles are prone to stiffness.

Solution:1Arrange the appropriate amount of exercise and the intensity and density of exercises: We should proceed from reality, reasonably choose the intensity, intensity, time and quantity, and arrange the intensity and density of exercise and exercises.

2.Training should be varied: the muscle groups exercised should be comprehensive, the means of exercise should be diverse, and the muscles with and without force should be alternately worked.

3.Master the ability of muscle relaxation: The ability of muscle relaxation should be mastered, and after each group of exercises, shake, deep breathing, massage, hot bath, etc. should be used to fully relax the muscles and eliminate fatigue as soon as possible.

4.Correct grasp of technical essentials: Correctly master technical essentials, pay attention to make muscle contraction and relaxation coordinated, and reduce unnecessary work and consumption.

The key to fatigue is the strength of the muscles. Muscle tension can make the body stiff and fatigued; On the other hand, if your muscles are soft, your body will be softer and less likely to get tired.

So, what does a soft body look like? It is generally believed that the muscles of top-notch professional athletes are the softest. Because their muscles are more elastic and elastic than ordinary people's muscles, such muscles will immediately expel the metabolic waste products generated by exercise, so the muscles are not easy to become tense.

Such a body is also called a "body that does not get tired easily".

Why do muscles tense and stiffen? There are three types of causes of muscle tension: muscle tension due to "exercise"; Muscles become tense due to "not moving"; The deformation of the bones causes tension in the muscles.

1) Because "exercise" makes the muscles tense, because when the exercise is excessive, the blood will block oxygen**, and the lactic acid produced during exercise will be discharged through the veins, and the lactic acid that is not discharged at this time will continue to accumulate in the muscle cells, resulting in fatigue and muscle soreness. At the same time, the muscles that feel the pain will contract and harden defensively...

Not exercising regularly Exercise regularly Don't take too much at once.

Problem analysis: You should consider this situation is a phenomenon that you usually produce less when exercising, you can massage more muscle stiffness in the future, and the choice of exercise in the future should pay attention to starting with a more relaxed point, and do not do a strong amount of exercise to prevent muscle stiffness.

Suggestions: It is recommended that you choose exercise in the future, and pay attention to starting with a more relaxed start, so that there will be no muscle stiffness.

Excessive exercise or trauma can cause muscle dehiscence, bleeding and abscess throughout the body. Abscesses are digested and absorbed by most patients, but they can also be the primary and secondary causes of muscle rigidity and ossification, resulting in ankylosis and disability of the affected muscles.