: Proper running posture can reduce physical exertion, increase efficiency, and prevent injuries. The back is straight, the abdomen is tightened, the arms swing naturally, and the stride is light and elastic. Watching the videos of the best runners in the race, their posture is often very standard, which is one of the reasons why they run fast and with less effort.

: 5km is a middle-distance run, and the breathing rhythm is crucial. When running, it is recommended to use deep breathing and rhythmic breathing, such as the common "three steps and one exhale, three steps and one inhale". Proper breathing relieves fatigue and prolongs physical exertion. There was once an amateur runner who had a breathing disorder during a race, resulting in a lack of energy in the second half of the race. Later, through targeted training, I mastered the breathing rhythm, and my performance improved significantly.

: 5km is a middle-distance run, and the breathing rhythm is crucial. When running, it is recommended to use deep breathing and rhythmic breathing, such as the common "three steps and one exhale, three steps and one inhale". Proper breathing relieves fatigue and prolongs physical exertion. There was once an amateur runner who had a breathing disorder during a race, resulting in a lack of energy in the second half of the race. Later, through targeted training, I mastered the breathing rhythm, and my performance improved significantly.