Climbing is definitely more injurious to the knee than running, climbing will increase the local load on the joints leading to cartilage wear and tear, and there is even the possibility of meniscal damage, especially in some steep hills without paying attention to the warm-up activities before climbing, which can easily lead to damage to the structures within the joints. As long as you warm up sufficiently before running, moving the joints will have a protective effect on the joints. Running can enhance blood circulation around the joints and exercise thigh muscle strength, which on the contrary has a protective effect on the joints. Therefore, for physical exercise enthusiasts, running on flat ground is often recommended, and senior patients are advised to reduce activities such as climbing hills and going up and down stairs.