For muscle hypertrophy, a certain degree of load is needed anyway. For example, doing push-ups to enlarge pectoralis major muscles, you can't expect to further muscle hypertrophy after more than 30 times. Although increasing the number of times will improve muscle endurance, if it reaches 50~60 times, it is impossible to increase the girth by natural training.

However, there are ways to add a little more muscle only through self-weight training. One way is to train slowly. If ordinary push-ups can be done more than 30 times, try to change them to slow exercises. In this case, it becomes a situation that you can only complete 10 times, so you can start training and accumulate with the goal of 30 times from here. But if you can do it 30 times, 40 times and 50 times, you won't enlarge your muscles further. If you want to gain more muscle mass than this, you can only use free weight or self-closing equipment.

The decisive factor that determines muscle gain is load. In other words, there is a limit to the use of muscle augmentation without instruments. If the purpose of bench press is 150 kg, you need to use the corresponding load for training, which at least cannot be achieved through self-weight training. Therefore, we should consider the target positioning of 30 self-weight training, and finally turn to the equipment. If you can't finish 30 times, because the muscles will get bigger with the increase of times, you can temporarily train according to the original method.

Second, the advantage of self-respect training is that it is convenient and fast, and you can even exercise anytime and anywhere. The disadvantage is that the effect is worse than mechanical selectivity, and it is difficult to improve after reaching a certain muscle mass.