It must be harmful to bones. After such a long period of load-bearing, bones can't get rest and are easy to wear, which leads to sports arthritis and hyperosteogeny. Generally, running with sandbags does not exceed two hours. Pay attention to rest after each weight-bearing training to relieve musculoskeletal fatigue. Let the body fully relax.

Life lies in exercise, but not the more the better. The combination of work and rest is the truth. Exercise and health care complement each other. 、