1, according to the weight of dumbbells: generally speaking, if the height is below 1.6 meters and the weight is within 60kg, the weight of dumbbells to be selected is 25kg 1.7 meters, and the weight of 70kg is 30kg. If the height is below 1.8 meters and the weight is less than 80kg, it is necessary to select 30 kg. If the height is 1.9 meters and the weight is 95kg, you should choose 45kg.

2. According to the types of dumbbells: The common dumbbells on the market basically include rubber-coated dumbbells, cast iron-coated dumbbells, electroplated dumbbells and painted dumbbells.

The dumbbell wrapped in cast iron is covered with cast iron, which is smaller than the encapsulated dumbbell and more affordable. The price of electroplated dumbbells is lower than that of packaged dumbbells, but the electroplated dumbbells are bright in color and will not fade, which is more suitable for home use. The painted dumbbell is painted, which is more beautiful and more stressful than electroplating, and is very suitable for fitness centers.

Girls should choose dumbbells according to their own situation, and it is more appropriate to choose 2KG dumbbells when they just start exercising; If you have a certain foundation and want to challenge higher difficulty, you can choose 3KG dumbbells.

Generally speaking, girls' thin arms are more suitable for their weight of 2.5kg, and it is also possible to choose dumbbells of 1.5-3kg according to their own situation. If you want to have beautiful lines through strength exercises, it is more appropriate to choose the weight that will be exhausted after doing 8- 10 times, that is, the dumbbells with low strength choose light weight and the dumbbells with high strength choose heavy weight.

Precautions in using dumbbells.

1, simply warm up before exercise. When doing dumbbell exercises, you should choose a well-ventilated environment and try to avoid practicing in an air-turbid, cold or hot environment. Before the start of the exercise, do warm-up activities; Be sure to do a good job of relaxation after exercise.

2. Exercise must be moderate. Some people blindly pursue the amount of exercise, which leads to excessive exercise, so pay attention to adjustment and rest when exercising.

3, the mood must be happy. Keeping a good mood in training can often get twice the result with half the effort. A good mood and abundant spirit can always bring unexpected results to people.