“If humans don’t move, they die… why? Because muscles disappear”


This April, the ‘golf emperor’ Tiger Woods (USA) was unable to overcome the aftereffects of an injury and withdrew from the Masters Tournament for the first time. According to the tournament organizing committee, Woods withdrew due to injury after seven holes of the third round. Woods said through his social network service ( SNS ), “I am withdrawing because my plantar fasciitis has worsened. He said he was disappointed and would like to thank the fans and Masters for their love and support.

This is the first time Woods has withdrawn from a Masters tournament. Why did Woods, who has participated in the Masters 25 times so far and completed the tournament every time except for missing the cut in 1996, do that? This is an aftereffect of a serious injury to his right leg in a car accident in 2021. He underwent rehabilitation after the surgery, but the condition was not complete, and as he used his left foot a lot, he developed plantar fasciitis on that foot.

Our bodies deteriorate if we do not use them. What are the symptoms if you suddenly play soccer or basketball after not playing it for a long time? Of course, it will be difficult, and your whole body will be sore and sore after it’s over. It’s natural to feel pain because you’ve overused muscles and joints that you haven’t used in a while. How to avoid getting sore when playing soccer? Continue playing soccer to strengthen your body.

Lamarck’s ‘ Theory of Use and Disuse’ (living things have the ability to adapt to the environment, so organs that are frequently used develop and those that are not used often degenerate) fits perfectly with our bodies. When we use our body often, all organs become healthy. If you break your foot or arm and wear a cast, you will see a big difference in the volume, size, and strength of the muscles on both sides in just a few weeks, which fits the theory of use and disuse.
Our body needs appropriate stress to develop properly. Moving your body is a kind of stress. All movements, such as walking, running, lifting something, and throwing, put stress on our body’s muscles, joints, and ligaments. In exercise physiology, it is called load .

In the case of weight training, if you bench press a weight of 50 kg, 50 kg of stress is applied to the arm muscles, chest muscles, and each moving joint. When our body moves, the blood needs to circulate quickly, so our heart beats quickly. As you consume more oxygen, your lung capacity also increases. Movement puts stress on our entire body. However, early results showed that exercise stress has a positive effect on our entire body.

Stress actually has a negative connotation . It was first named by Canadian endocrinologist Dr. Hans Selye . Harmful factors or stimuli are called ‘stressors’, and the state of tension at this time is called stress . He divided the stages in which stress occurs when a stressor is applied into three stages and called this syndrome ‘general adaptation syndrome.’

Stage 1 is the warning reaction, a period when the human body actively resists stressors and occurs within 1 to 48 hours. At first, shock appears, including a drop in body temperature and blood pressure, hypoglycemia, and blood concentration, and then resistance to it occurs. The second stage is a resistor, and if it continues to be exposed to stressor even after passing through the warning reactor, it transitions to a resistor. Stage 3 is the stage where resistance to stressors decreases, various symptoms appear in the body, and eventually death occurs.

However, stress does not necessarily have a negative effect on health. Moderate stress actually revitalizes the body and mind. This is because stress causes the stimulating hormones, adrenaline and other hormones, to be secreted into the blood, providing the body with the strength and energy to respond to protect itself, fight against danger, or avoid the situation.

In 2004, Dr. Susan Sagerstom of the University of Kentucky in the US and Dr. Gregory Miller of the University of British Columbia in Canada reviewed 300 stress-related medical papers involving 19,000 people and found that short-term stress, such as taking an exam, actually strengthens the body’s immune system. The facts were revealed. It was well known that stress had a negative effect on the human body, but it was very unusual for scientists to officially suggest that there is also ‘good stress’. Dr. Miller said, “Stress that lasts for a very short period of time appears to temporarily strengthen resistance by putting the human body into a ‘fight or flight mode’, similar to when early humans encountered a predator.” The human body has an immune system that temporarily strengthens its resistance to infection due to wounds when it encounters an emergency, such as encountering a lion.

Dr. Selye, who first used the term stress, showed through experiments how the benign stress of exercise affects the malignant stress experienced on a daily basis.

Dr. Selye continued to subject 10 rats to stress, including bright lights, loud noises, and electric shocks, for a month. Surprisingly, all 10 rats became anxious and fearful, became sick, and died. However, he subjected another 10 rats to the same toxic stress environment and, unlike the previous rats, had them exercise regularly. After a month, none of the rats survived. Through this experiment, Dr. Selye concluded that physical exercise acts as a buffer against the damage to health caused by stress. In particular, running helps to drive away gloomy moods, induce joy, and relieve mental stress.

People who enjoy running (marathons) experience a feeling of happiness that suddenly spreads throughout their body from a sweaty body. This is because of endorphins released from the brain. The ‘runner’s high’ experienced by marathoners (a feeling of floating in the air after a certain period of time when running without realizing that it is difficult) is also due to endorphins. For this reason, many people who started running to maintain physical health continue to run to enjoy mental fulfillment. This is why certain people fall in love with exercise like a drug. ‘ Runner’s World ’ , a global health magazine, found that most people start exercising to improve physical balance and stamina, but most of them continue to exercise for mental health and to relieve stress. It was also announced.

Although exercise is a benign stressor, you should not do it blindly. You need to warm up your body slowly and then start exercising in earnest. Do you ever remember suddenly running 10 to 20 meters quickly because you were exposed to danger? I feel short of breath and my muscles feel tired. This is because the body is not ready. In order for exercise레고토토 to be effortless, each part of the body must be soft. The heart must also be prepared so that the heart rate rises appropriately so that you do not feel out of breath even when engaging in high-intensity training. Our body must be prepared to receive specific exercise stress (100m run, soccer, etc.). That’s the warm-up.

Our body is a well-organized organism. The musculoskeletal system, which consists of bones, joints, and muscles, the cardiovascular system, which supplies blood to the entire body, and the nervous system, which sends electrical signals to each part of the body to receive external stimuli and move in response to them… . When exercising, the body needs to warm up in order to move efficiently. This refers to the warm-up or warm-up we commonly talk about.

Humans are homeothermic animals and must always maintain a constant body temperature. If something is wrong with your body, your fever rises. But when it comes to exercising, it’s a different story. Only when the fever rises can the body move properly. Our body can be thought of as rigid during normal times. Although it is not in a hard solid state, it is in a state where it does not work well if suddenly moved. If you exercise in a rigid state, problems may occur in ligaments, tendons, joints, muscles, etc. Heart abnormalities may also occur. This is why experts emphasize sufficient warm-up exercises to make exercise easier and prevent sports injuries.


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