How much vertical force can a knee joint handle?

The vertical force a knee joint can handle varies based on factors such as individual anatomy, body weight, and activity level. Generally, the knee joint can withstand forces ranging from two to six times a person's body weight during activities like running or jumping. For example, a person weighing 150 pounds could experience forces between 300 to 900 pounds on their knee during high-impact activities. It's important to note that excessive force can lead to injury or joint degeneration.