I believe everyone wants to get a pair of explosive double heads, and dare not ignore the training of double heads. Knowing the principle of cyclic progressive weight bearing is the key, and the breakthrough of training weight is the key. But after reading this experiment, I suggest you reduce the training weight of two heads, so that you may get better results.
We have to admit that we borrowed too much inertia, too many muscles participated in compensation and used too much weight to train.
Just such a small muscle, there is no need to squeeze it with such a large weight. It is not a symbol of strength. No one cares how heavy your two heads can lift, and its strength can't bring you much pride. There are indeed many people who say that the weight of the exercise head is not as big as that of the previous two years, but they have seen more progress.
Some people have done experiments on the importance of weight to the growth of two heads. The researchers found a group of experienced subjects, who were trained with one hand bearing about 70% of the limit load, while the other hand did not use any load at all, but did elbow flexion and lifting with empty hands.
But every movement requires tightening muscles as hard as possible, which is a bit like bodybuilding training. After 18 training, although the biceps strength and muscle endurance of the loaded hand are more improved than those of the non-loaded hand, unexpectedly, there is no difference in the growth of muscle thickness between the two hands.
The result of this research doesn't tell you that you can exercise two heads without load, just doing bodybuilding. Research belongs to research. I just hope that everyone can understand that the growth of muscles, especially the growth of small muscles, is not simply measured by the weight. More importantly, whether the weight is accurately applied to the target muscle and how much. This is the direction of our thinking, which is the key to whether the target muscle can break out.
When you are doing biceps training, too many muscles are involved, especially when you are heavy. When you pick up a weight that two heads can't bear, you still insist on making a bend. Then your agent can only use more muscles to assist, and forearm, shoulder, back, shoulder and even pectoralis minor will all participate to help you complete this action.
In view of this phenomenon, think about it, how much force is really exerted on the two heads? How many muscle fibers can you destroy? How much can two ends grow? I believe everyone has an answer in their hearts.