When you are participating regularly in the sport of bowling there are some particular precautions you should take to ensure you do not wind up injured.
One of the most common injuries in bowling is an increase in knee pain. This occurs because you are constantly moving into the lunge position.
If your knee is not moving over your toes and rather out to either side of the foot there is a good chance it will cause friction and an increased in tension on the knee joint thus leading to pain and inflammation. Then every time you go bowling you will feel the pain and the condition will continually get worse.
To avoid this problem it is a good idea to practice performing lunges in the gym during your workouts. Really focus on your foot placement so that it is directly in front of your hip. The back knee as well should be bending straight down to the floor during the lowering portion of the lunge. By performing this exercise you will help not only teach yourself the proper form so that it becomes a habit for when you are in a game but you will also strengthen the muscles and ligaments that hold the knee cap in place thereby further decreasing the chance of injury.
Additionally, if you do start to notice pain in the knee it is important to ice it immediately after you are finished playing. This will help to reduce the inflammation and pain you experience.
If it is a prolonging problem for you then you may also wish to consult with a physiotherapist about it as they can likely teach you a variety of exercises that you should be doing on a daily basis and offer more intense treatment methods to help resolve the current pain.
Taking care of your knees is very important if you hope to play this sport as well as others well into your life. Knee pain can be very de-habilitating so make sure you treat it as soon as it starts.