Normal bone density

What is bone density? In fact, bone density can clearly reflect the quality of bones. In addition, it can not only reflect the degree of our osteoporosis, but also can be an important basis for predicting whether we will have fractures. It can be seen that bone density is one of the most important values ​​for us. Therefore, many friends want to know what the normal value of bone density is and how bone density is measured.

Many middle-aged and elderly people will experience osteoporosis symptoms, which are related to low bone density. Therefore, if you want to prevent fractures, osteoporosis and other diseases, you should supplement calcium regularly and eat more foods containing vitamin D. Below we will introduce and analyze how to increase bone density and what the normal value of bone density is.

definition

The full name of bone density is bone mineral density, which is an important indicator of bone strength. It is expressed in grams per square centimeter and is an absolute value. When bone density values ​​are used clinically, the T value is usually used to determine whether the bone density is normal because the absolute values ​​of different bone density detectors are different. The T value is a relative value, and the normal reference value is between -1 and +1. When the T value is lower than -2.5, it is abnormal.

Drugs and diet to improve bone density:

Depending on the causes and mechanisms of bone density deficiency, different raw materials can be selected when designing health food formulas. The raw materials commonly used are as follows:

1. Calcium supplements: If calcium absorption is normal, 1.00 grams to 1.50 grams per day is sufficient. Among various calcium supplements, calcium carbonate is the most commonly used. For people over 65 years old, take 0.75g to 2.5g per day. For those who have many side effects from using estrogen and may develop endometrial cancer, giving them large doses of calcium can have the same effect as using estrogen. Patients with kidney stones cannot consume large amounts of calcium.

2. Vitamin D and its active products: In the past, it was believed that elderly osteoporosis patients were often accompanied by vitamin D deficiency, so it was advocated to give more vitamin D. In fact, except for those with osteomalacia (generally speaking, only children are prone to osteomalacia, such as rickets), intestinal calcium absorption disorders and reduced production of vitamin D metabolites, there is generally no need to supplement large amounts of vitamin D. Those who have the above three conditions can be given vitamin D at the same time.

3. Calcitonin: Calcitonin can reduce bone absorption, reduce calcium in the blood circulation, and increase the calcium content in bones. Since calcitonin can lower blood calcium, the amount of calcium should be supplemented when using calcitonin to play a role in treating osteoporosis.

4. Phosphates: Phosphates have been used to treat osteoporosis in recent years. Phosphates can promote bone formation, inhibit the destruction of bone cells, and can be used for a long time.

5. Others: At present, the main raw materials of health foods that increase bone density on the market are chemical raw materials and Chinese herbal extracts, and the main dosage forms are capsules, tablets, etc. After the new regulations on health foods are introduced, the technical requirements for the research and development of health foods will be raised. Based on the declared health functions, the boundaries on raw materials can be relaxed and some new raw materials can be used. New dosage forms can be developed. This will better improve the effects of health foods.

Normal bone density

The bone density values ​​of healthy Han people in northern China are used to determine the age, size and normal values ​​of peak bone density for each age group. DXA was used to measure the bone density of lumbar vertebrae L2-L4 and hip. The results show that the peak bone density of men is between 20 and 24 years old, with a L2-L4 density of 1228 (g/cm2); the peak age of women at the lumbar spine is between 30 and 34 years old, with a value of 1197 (g/cm2). The peak age of hip bone density is 25-29 years old.

Regarding the normal value of bone density, generally speaking, men's bone density is best between the ages of 20 and 24, and the quality of bones during this period is relatively good. The best bone density for women is between 30 and 34 years old. Of course, as we age, bone density begins to decline, so we should supplement more calcium, vitamin D and its active products, etc., to help us alleviate the symptoms and phenomena of osteoporosis.