Aerobic exercise not only consumes fat to reduce fat, but also consumes muscle to some extent. Of course, running will also increase the leg muscles, although the shape of this muscle is not quite the same as that we usually see in the gym.
The muscles of human body are divided into fast-contracting muscle fibers and slow-contracting muscle fibers.
Rapid contraction muscle fiber is the kind of big muscle that we usually understand. Muscle fibers are relatively thick, and ATP produced by anaerobic glycolysis quickly supplies a large amount of energy to the body. Fast-contracting muscle fibers have fast reaction speed and can provide us with powerful explosive force, but the duration is short, and they will soon be tired because of the accumulation of lactic acid in muscles. It is this fast-contracting muscle fiber that performs strength training in the gym.
Slow-contracting muscle fibers are slender in shape and cannot provide us with strong explosive power, but they have long endurance. This is because the slow-contracting muscle fiber mainly relies on adenosine triphosphate produced by aerobic metabolism for energy supply, which has slow reaction speed, small contractility and is not easy to accumulate lactic acid, so it is not easy to get tired and can supply energy for a long time.
In everyone's skeletal muscle, fast-contracting muscle fibers and slow-contracting muscle fibers coexist, but the proportion of slow-contracting muscle fibers of long-distance runners will be much higher. So, although they look thin, they are actually muscular. It's just that the slow contraction muscle fibers are slender, so the muscles look weak.
Generally, the purpose of fitness is to have a strong muscle shape, which can't be done by running. On the contrary, the more you run, the thinner your figure will be. Especially for men, too thin and thin figure is not welcome.
To become a muscular man with big physique and bulging muscles, we need to carry out intensive strength training, increase the explosive power of muscles in a short time, tear muscle fibers, and then repair and grow muscles by supplementing nutrition such as protein and good sleep.
Of course, running can still be done at the same time. Besides reducing fat, running can also enhance our cardiopulmonary function, enhance our immunity and relieve our mental stress, which is very beneficial to our health.
Running is becoming more and more difficult for modern people. Too many people do not participate in sports for a long time, which makes the basic sports ability of the body in a state to be improved. For such a state, running has become a very difficult sport, which has a good effect on our physical coordination, physical fitness, cardiopulmonary ability and joint mobility. Running is a good activity, but we need more preparation.
Therefore, for people who are overweight and don't exercise for a long time, I prefer to do more joint activity recovery exercise and proper muscle endurance exercise plus focused walking. This kind of exercise can obviously reduce the requirements of joint exercise intensity and enhance cardiopulmonary function. After all, the first thing to consider in training is safety, and then it can be gradual. Modern gyms have a variety of training equipment. Many of them are designed to relieve the pressure of joint activities of modern people. Because our weight is getting heavier and heavier, the cost of our participation in sports is getting higher and higher, and too much food creation is constantly reducing our sports effect. Most delicious foods ignore the calories of food.
An hour's exercise consumption can be completely offset by a snack, so I have always said that modern people's figure is the result of modern lifestyle. If we don't know what nutrients we eat, do we still need them? Then the exercise of reducing fat is really far away.