When the waist-leg ratio is greater than 1.8, or the leg circumference is less than 50 cm, the risk of chronic diseases will increase. Xu, vice president of Chang Gung University, said that in order to keep healthy or pursue a good appearance, many people want to have thin legs, especially a pair of "bird feet", but these people not only look thin, but in fact they are really "too thin".
"We found in epidemiological research that if the legs are too thin, it is easy to get diabetes. If the legs are thin, but the waist is thick, it is easier to get visceral cancer. Xu said that in addition to considering weight and body fat, you actually need to look at the position of these fats and muscles to truly understand your health.
For example, the Society of Epidemiology published a study in 20 17, and analyzed the data of more than 100 health check-ups in Chang Gung Hospital 10 1000. It was found that "three measurements" are all parts that need special attention, including chest circumference, waist circumference, hip circumference and leg circumference.
Waist thick and legs thin: easy to get visceral cancer.
Thin waist and thin legs: easy to have chronic diseases.
Legs thin and chest big: easy to have cardiovascular problems.
Thin waist and thick legs: it is a healthier type.
The main reason for this difference is the different types of fat and muscle in these parts. Xu said that the human body still needs fat to help maintain normal endocrine; With the help of "skeletal muscle", most of the fat distributed around is subcutaneous fat, which will secrete anti-inflammatory hormones instead.
Generally speaking, the waist circumference of men will be controlled within 90 cm and that of women within 80 cm, but even if the waist circumference is within the normal range and the ratio of waist circumference to leg circumference is greater than 1.8, there will still be the risk of chronic diseases; If the leg circumference is less than 50 cm, it is considered "too thin" and unhealthy. In both cases, the risk of chronic diseases such as diabetes, kidney disease and cancer will double.
Thigh fat secretes anti-inflammatory hormone; Thigh muscles can help lower blood sugar, but why is the thickness of legs so important? Xu said, firstly, thigh muscles can help lower blood sugar, and secondly, if there is enough muscle, there will be enough subcutaneous fat, which can help the body increase the secretion of leptin and adiponectin.
Because muscle is particularly easy to consume sugar, it can also turn blood sugar into "stored sugar". If there are many muscles, it means that the body can store a lot of sugar, and blood sugar is not easy to rise. Du Side, chairman of Diabetes Health Education Association, said, however, if muscle loss means that the body's demand for "sugar" is also reduced, then the sugar will remain in the blood and become hyperglycemia or fat, which will lead to weight gain or high fat.
Furthermore, the lean body mass secreted by fat can balance the metabolism of fat and blood sugar in the body and keep the state of "not too much fat and stable blood sugar"; Fat? Insulin can avoid insulin resistance, increase blood glucose metabolism, inhibit vascular inflammation and reduce the risk of cardiovascular diseases.
But if it is abdominal fat, because most of it will be wrapped outside the organ, it will easily lead to organ inflammation and cancer; Too many muscles in the upper body will make the body secrete norepinephrine, which will lead to vasoconstriction, and blood pressure will rise in a short time, making blood vessels more likely to harden.
Qiu, executive director of Taiwan Province Epidemiology Society, said that relatively speaking, lower body training is safer than upper body training, but in fact, upper body training is not bad. To be correct, it should be "whole body training", which is the best for the body.
"For example, after practicing the upper limbs, you can go for another lap, do aerobic exercise, or squat, because whole-body training can also increase the body's use of oxygen, repair the just damaged part, and be healthier for blood vessels. Qiu said to him.