Grades are generally divided into:

1, rookie level: 2-5kg. Generally speaking, the rookie level is weak, even the average person's physique can not reach.

2. Entry level: 5- 10kg. The introduction is that you have normal constitution and physical strength.

3. Strong level: 10-20kg. At this time, the physique has been better strengthened and the body has obvious muscles.

4. Advanced level: 20-40kg. At this time, there are many muscle groups in the body and the physical quality is very high.

5. Great God level: 40-60kg. At this stage, the great gods can basically participate in fitness competitions and have good physical fitness.

Extended data:

Several problems that should be paid attention to when choosing dumbbells;

1, weight: What weight should a novice buy? I said before that I should choose according to my height, but it is not very reliable. The answer now is about 30kg or 40kg. The length of a 30kg dumbbell pole is about 35cm, and the 35cm pole can hold up to 8 dumbbell pieces (nuts can also be locked), while the dumbbell pole under 25kg can only hold 6 dumbbell pieces, so the pole must be changed again if dumbbell pieces are added in the future.

2. Dumbbell bar: length and material. As mentioned above, you should choose a dumbbell rod above 35cm to get started, which is enough for battery life. The material is divided into coated rod and polished rod (gear rod). The coated rod has a strong smell, so be sure to choose a polished rod. In addition, there are dumbbell connecting rods on the market now, which is a selling point made by manufacturers. It's a chicken rib product. It doesn't work at all.

3. Dumbbell pieces: Dumbbell pieces on the market (3.75kg, 5kg) are mainly electroplated dumbbell pieces and painted dumbbell pieces. If you want to last, you can only choose these two kinds of dumbbells. If you want to buy more barbell sticks, you have no choice.

To sum up: the steel dumbbell looks like a whole piece of steel. As I said before, steel plates are wrapped in cast iron or steel plates, but the price is much higher. The steel dumbbell rod is not long, and there is not much room for adding parts. Even if you add a dumbbell, it's a plated dumbbell or a painted dumbbell. Isn't that an electroplated dumbbell?