Friday, August 21, 2009

Hips- The Powerhouse to the Entire Body

HIPS
The Powerhouse to the Entire Body

The hips provide power to the entire body. When they are working correctly they are your best friend, but when they are inhibited they quickly become your worst enemy. The hips affect joints as far away as the elbow and the ankle. An improperly functioning hip can easily contribute to low back pain (disc bulges/herniations), knee injuries (ACL, tendonitis), shoulder injuries (impingement, rotator cuff) and elbow injuries (tennis and golfer’s elbow).
The hip joint is a tremendously mobile yet stable joint. It connects the femur (thigh bone) to the pelvis via a deep cup called the acetabulum. It has 17 of the thickest, strongest muscles attached to it and these muscles are held together by fascia which functionally links the hips to pretty much the entire rest of the body. The secret behind the power of the hip is its ability to load and unload in all three planes of motion. This allows the hip to control motion of the kinetic chain. Let’s use the knee as an example of how the hip has an effect down the kinetic chain. Most traditional rehabilitation stresses the quadriceps and the hamstrings, but these muscles really only control knee motion when the knee is flexed close to 90degrees. This excludes them from being the primary stabilizer during everyday activities like walking. The hip muscles, on the other hand, are well designed to control the three dimensional motion of the knee because they are oriented to slow down the motion of internal rotation, adduction and flexion of the knee. This takes tension off the ligaments of the knee (especially the ACL).
Now let’s look at an example of how the hip has effects up the kinetic chain. The hip helps protect the rotator cuff of the shoulder and the ligaments of the elbow. In this case it’s the muscles in the front of the hip that do the work. Namely, the iliopsoas, abdominals and adductors… When I see tennis players with elbow pain in my office, I always examine their hips. This is because they play a significant roll in stabilizing the body for movement. To see how the hips influence the shoulder stand up and take a long step forward with your left leg and then raise your right arm out to the side to shoulder height. Did you feel tension at your hip? This means that the muscles of the front of the hip are loaded and ready to contract. Now sit down and lift your right arm up. Did you feel the same tension? Probably not, because the flexed position of the hip inhibits its ability to contract and properly stabilize the body.
As you can see proper hip function is essential to injury prevention and optimal performance. It is important to keep the hips strong in order to stabilize the rest of the body. But be careful! Not all training exercises are the same. Most of the traditional exercises used to build abdominal and gluteal strength actually inhibit the ability of the hip muscles to contract at the right time. And activities like prolonged sitting actually promote faulty capsular patterns of the hip. Your training program should be unique to your needs and functional goals and should promote both mobility and stability. Whether you are an active or inactive person your hips are a key piece of a pain-free life.
Dr. Colling has extensive training an experience dealing with hip biomechanics. If you would like an evaluation, have an injury or would like advice on how to properly train your hips for optimal performance, please call 503-808-9145.

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