Tips to Prevent Volleyball Injuries. Each year, more than 187,000 volleyball-related injuries are treated in hospitals, doctors' offices, clinics, ambulatory surgery centers and hospital emergency rooms. The American Academy of Orthopaedic Surgeons (AAOS) offers advice for avoiding injury while playing volleyball.

Ligament Injuries. The stability of the knee mostly depends on the ligaments and muscles around it. Therefore, injuries to knee ligaments are common. The AAOS provides an overview of these ligaments and the ways they are most commonly injured.

Meniscal Injuries. The meniscus helps the knee joint carry weight, glide, and turn in many directions. It also keeps your femur (thighbone) and tibia (shinbone) from grinding against each other. Learn why athletes frequently experience meniscal tears.

Ankle Sprains. Ankle sprains happen when the foot twists, rolls or turns beyond its normal motions. The AAOS explains how these common injuries are diagnosed and treated.

Shoulder Pain and Rotator Cuff Tears. Rotator cuff tears are a common source of shoulder pain in the active population. Learn about the causes and treatment options.

Heat Exhaustion. Heat exhaustion is a serious illness most often brought on by overexertion or profuse sweating in a hot, humid, poorly ventilated environment. Learn how to avoid it and how to recognize it and respond.

Muscle Cramps. The AAOS provides advice about how to prevent the sudden, tight, and intense pain caused by a muscle locked in spasm.

Beginning a Weight Training Program. Weight training encourages muscles to become stronger. The AAOS offers advice on getting started.

Female Athletic Triad. A female athlete who focuses on being thin or lightweight may eat too little and/or exercise too much. Learn about the dangers of the condition known as the "female athletic triad".

Creatine Supplements. Many athletes, including some children and adolescents, take creatine supplements to increase strength and improve sports performance. The AAOS discusses the pros and cons.

Steroids Don't Work Out. If you think anabolic steroids can improve your athletic performance or help you look good, think again. Learn why taking these drugs will not accomplish what you want from them.

Sports Nutrition. Athletes who want a winning edge need the right nutrition. The AAOS explains how sufficient hydration and a balanced diet help your body to make energy efficiently and fuel top performance.