A knee ligament injury can occur especially when you exercise or have heavy physical activity. Some knee injuries risk disrupting knee function. One result, the strength of the knee to support the body is reduced. The knee is the part of the body that works hard when you are active, especially when doing sports like running. The burden on the knee when working hard can cause injury to the knee ligaments. Ligaments are hard bands that connect bones to bones in the body. Causes of Knee Ligament Injury Ligaments in the knee are ligaments that are prone to injury and can cause permanent changes in one's ability to move. Injuries that are often experienced by these athletes can also be experienced by anyone who does or experiences the following conditions: Knee hit by a blow or a hard impact. Turn your knees with your feet still on the ground. Transfer weight from one leg to another suddenly. Spread your knees too far. Jump and land with knees bent. Sudden stop when running....