To help prevent sports-related knee injures, you can:
Warm up and stretch before you participate in athletic activities.
Strengthen the muscles around the knee through an exercise program.
Avoid sudden increases in the intensity of your training program. Never push yourself too hard, too fast. Increase your intensity gradually.
Wear comfortable, supportive shoes that fit your feet and fit your sport. If you have problems in foot alignment that might increase your risk of a twisted knee, ask your doctor about shoe inserts that can correct the problem.
If you play football, ask your sports-medicine doctor or athletic trainer about specific types of shoe cleats that may help to reduce your risk of knee injuries.
If you ski, use two-mode release bindings that are installed and adjusted properly. Make sure that the binding mechanism is in good working order and that your boots and binding are compatible.