This is not easy to judge. If the training intensity is not enough and the training movements are not standardized, it is not enough to have the feeling of muscle congestion, including the feeling of muscle pain, which is also a reference to consider the training effect. However, the feeling of pain generally varies from person to person and needs to be analyzed on a case-by-case basis. Of course, it is better to let the subject consider it comprehensively. After fitness, it is necessary to match a reasonable diet and ensure adequate sleep in order to maximize the fitness effect.