According to the body mass index (BMI) = weight (kg) ÷ height 2 (m), if your index is lower than 19, you belong to a lean body type. Thin people can improve their cardiopulmonary function and physical fitness by running and exercising. But your body shape may become slimmer and slimmer because of running, that is, you will get thinner and slimmer as you run, even if you eat more, you will not gain weight.

Thin people should not run too much. When running and other sports, if they also think that the longer the exercise time, the better the effect. Actually, this is not right. The exercise of thin people should be mainly anaerobic exercise, supplemented by aerobic exercise. Because aerobic exercise burns calories, anaerobic exercise is to gain muscle. For thin people without fat, what they need is certainly not to burn calories.

Generally speaking, exercise 5 days a week, of which jogging can be arranged in the exercise plan of 1 ~ 2 days. The rest can choose warm-up exercise and anaerobic exercise. Control the time of each exercise below 60 minutes to avoid excessive exercise.

3 thin people should pay attention to balanced nutrition after exercise. Thin people should eat more protein, carbohydrates, vitamins, cellulose and other essential substances after exercise, which will help the body to metabolize and synthesize. If a thin friend insists on three meals a day after exercise, it is easy to get thinner and thinner, because the consumption is far greater than the intake.

Exercise five days a week, and you can arrange jogging 1-2 days. The rest can choose warm-up exercise and anaerobic exercise. Protein, carbohydrates, vitamins and other essential substances should be supplemented after exercise. Of course, if possible, you can consider muscle gain powder or protein powder.

Four problems that thin people should pay attention to when exercising 1. Reasonable arrangement of exercise is one of the key links of scientific exercise. Facts have proved that thin people carry out aerobic exercise with moderate amount of exercise and the weight of equipment with moderate load is better. In terms of schedule, you might as well practice three times a week, each time 1 hour. Practice 8- 10 movements at a time, with 3 to 4 groups for each movement.

2, lay a good foundation In the initial training stage, thin people had better learn and exercise with professionals, so that they can correctly and systematically master motor skills and comprehensively improve their physical fitness. Pay special attention to muscle strength and endurance exercise, so that the body's adaptability can be gradually improved and a good foundation can be laid.