The effect is not very good, because of the problem of motion trajectory, it is easy to compensate the muscle strength of other parts, and the stimulation to biceps will become smaller. If you want to stimulate biceps, it is better to practice with dumbbells. But remember, don't shake your body and don't compensate. Just take out the strength of two heads and the effect will be more obvious.

Arm stick is a kind of fitness equipment, which mainly exercises upper limb strength. Mainly exercise forearm muscles, pectoral muscles and deltoid toes. Exercise biceps brachii slightly. The arm stick is a spring with handles at both ends and a strong spring in the middle. Rod shape is a kind of sports equipment which mainly exercises arm strength. According to the thickness of the middle strong spring, it is divided into 20kg-60kg.

The muscle groups that the arm exerciser can exercise mainly include: back muscle, arm muscle, abdominal muscle and so on. Generally speaking, the arm strength device can exercise the chest and arm muscles well. If you want to make the muscles of these two postures more developed, you can buy an arm strength device and exercise regularly at home. When using the arm strength device, we should also pay attention to acting according to our own ability.