Achilles tendon injuries – Your Achilles tendon is the thick, corded tissue that connects your calf muscle (in the back of your lower leg) to your heel. This is the largest tendon in your body. It’s used to help you walk. Achilles tendinitis is a common injury to the Achilles tendon. It’s common in sports that require a lot of running. It can be caused by not stretching enough before playing, not wearing the right shoes, or suddenly playing the sports more. You may have Achilles tendinitis if your heel or calf hurts when you walk or run. Other symptoms include swelling in the area or if the area is warm to the touch. These injuries can be both acute or chronic.

Jumper’s knee – This is also known as patellar tendinitis. Jumper’s knee happens when there is an injury (or inflammation) to the tissue that connects your kneecap and thigh muscles your shin bone. Sports with repetitive jumping are common triggers for this injury. Examples include basketball and volleyball. Also, people who are overweight or play sports on a hard surface are more likely to get jumper’s knee. Symptoms include knee pain, usually just below the kneecap. You may experience weakness or stiffness in the knee while jumping, kneeling, or climbing stairs. These injuries can be both acute or chronic.

Rotator cuff injuries – Your rotator cuff is an area inside your shoulder. It helps your shoulder move and keeps it stable. Injuries to this area are common when the same actions are repeated many times, such as in swimming, tennis, or baseball. Symptoms include swelling in your shoulder, pain when you lift your arm, and pain when you try to reach behind your back. This injury is chronic.

Runner’s knee – Runner’s knee is another repetitive-motion injury. It’s common to runners and anyone who does a lot of walking, biking, or general knee bending. It can also be caused by knee trauma or a hard bump to the knee. Symptoms include pain behind your kneecap, especially when you bend your knee. The area may be swollen, or you may feel a grinding sensation when your knee bends. These injuries can be both acute or chronic.

Shin splints – Your shin is the area at the front of your lower leg, below your knee. Shin splints happen when the muscles and tendons around your shin become inflamed. This injury often impacts runners and basketball players. The main symptom of shin splints is pain in the front of your lower leg while playing the sport. The pain usually goes away with rest. These injuries are acute.

Sprains – A sprain is one of the most common sports injuries. A sprain is a stretch or tear of a ligament near a joint, such as a knee, ankle, or wrist. Sprains are most often caused by falling or by a twisting motion. They can be mild or severe, depending on whether the ligament is stretched or torn. Symptoms are pain, swelling (sometimes severe), and bruising. You may also not be able to apply weight to the joint without pain. These injuries are acute.

Strains – A strain and a sprain are different. A strain hurts a muscle, while a sprain hurts a ligament. A strain occurs when you stretch or tear muscle tissue by overextending it. Mild strains can be caused by repetitive motion. In sports, acute strains are most likely to occur when you are running, jumping, or lifting. They also happen when you quickly change direction. You’re more likely to strain a muscle in cold weather. Symptoms are sudden pain followed by immediate limited range of motion to the affected area. In severe cases, you may also see bruising and swelling. These injuries can be chronic or acute.