Animated human body anatomy of hip labral tear part 2 hip
hip_labral_tear_02_hip_biomechanics
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Hello, my name is Nula Eastlink and I'm a physical therapist specialize in outpatient orthopedic and sports medicine. Today I'll be talking about biomechanics and functional anatomy of the hip. The hip is the largest ball and socket joint in the body. It differs in design from the more common hinge joints in order to meet the requirements of ambulation.
In addition to its stability, the hip joint is also a very mobile joint, second only to the shoulder joint. In the body. The hip joint has three degrees of freedom. That is, it moves in three different planes, sagittal plane flexion, extension, frontal plane, abduction, abduction, and transverse plane, external internal rotation.
In the sagittal plane, the hip flexes to 120 degrees and extends to 20 degrees. In the frontal plane, the hip abducts 45 to 50 degrees and AUCs 20 to 30 degrees
in the transverse plane. The hip, externally, or laterally [00:01:00] rotates 45 degrees and internally or immediately rotates to 35. During gait, the hip moves a total of 40 degrees in the sagittal plane, 11 degrees in the frontal plane, and eight degrees in the transverse plane. Ground reaction forces are also a factor for hip biomechanics during gait.
As the body advances from heel strike to toe off the ground, reaction, force vector changes from anterior to the hip joint to posterior. That brings us to the end of the discussion. Thank you for joining us.
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