I am a student. I have been practicing horizontal bar and parallel bars every day for almost two weeks. After finishing, my right brachioradialis muscle and forearm muscle are very painful. What happened? Dear, this will happen when the muscles have been trained to a certain intensity (that is, when the amount of activity is relatively large). It usually appears after 1-2 days. This is a kind of delayed pain. It is normal. Don't worry. Especially those actions against gravity and strong resistance are more likely to cause muscle soreness.

If you don't want to have this kind of reaction, you can reduce the training intensity appropriately. Anyway, this situation is normal, which means that you didn't exercise that much before. If you practice more, your muscles will not be sore. Just get used to it.