使用椅子作为支撑增加稳定性和精准度，可以更加专注于体式的正确性和身体的感受，减少受伤的风险，同时也能逐步提高身体的柔韧性和力量。

Using a chair as support increases stability and precision, allowing you to focus more on the correctness of the pose and the feeling of your body, reducing the risk of injury, while also gradually improving your body's flexibility and strength.