According to the height and weight, it is suggested that the initial training intensity is 5-7.5 kg for biceps brachii. If the triceps brachii is made of dumbbells, it is 2.5-5 kg for one hand and 10 kg for the shoulder. Therefore, it is just right for you to buy a pair of dumbbells with a nominal weight of 30 kg (actually only a little more than 20 kg) at first. If you insist on training. After 3 months, this weight is ok for you, second and third. But shoulders are definitely not enough. After six months, I can't do it. At that time, it will be appropriately aggravated according to its own physical condition.

Extended data:

Dumbbell exercise is a set of fitness methods completed with dumbbell equipment. It can achieve the goals of lean people gaining muscle, fat people reducing fat and shaping. Different fitness stages and fitness purposes, dumbbell exercise methods are different.

Basic exercise principles:

1. Thin people are suitable for dumbbell exercises with heavy weight and few times.

2. Fat people are suitable for reducing fat with small weight and repeated dumbbell exercises.

3. For the purpose of shaping, it is suitable for practicing with dumbbells of medium weight.

References:

Dumbbell Exercise-Baidu Encyclopedia