1. Arm exerciser belongs to the lowest fitness equipment. The range of exercise can only be a single function of the arm, and it is impossible to exercise other muscle groups.

2. The principle of arm strength exercise is that muscles resist the resistance of springs to achieve the effect of doing resistance exercise to exercise muscles. The resistance of the spring is fixed, and it will decrease after a long time, which is equivalent to exercising muscles with the same weight all the time. At the beginning, muscles will grow to a certain extent because they can't adapt to this resistance.

But after getting used to it soon, the muscles will face a fixed weight, and doing it a few times will only exercise the endurance of the muscles, not the strength. Endurance exercise will not increase muscles and increase latitude.

In order to increase strength and improve muscle tolerance in the process of fitness, we need a training method with greater weight and fewer times. Each group weighs 5- 10RM and is divided into 4-6 groups. Only by increasing the load and resistance can we grow muscles, which the arm strength device can't provide.

3. It is suggested to use detachable dumbbells instead of armrests. A pair of dumbbells can exercise almost all the main muscle groups in the whole body and can increase weight at any time.

Extended data:

Exercise preventive measures

1. Before use, please check whether the connecting parts of the arm strength device are firm and not loose.

2. Please choose the arm strength device suitable for your body level, so as not to strain your muscles.

3. When in use, tie the safety belt rope on the handle of the arm strength device to your wrist.

4. When using, you should choose a relatively spacious venue to exercise, so as not to get rid of it and hurt people.

5. It is suggested that children under 12 should not use the arm strength device.

6. When in use, it should be carried out at a uniform speed.

References:

Baidu encyclopedia-arm strength device