Is it true that the left pelvis, right pelvis, and sacrum all move independently?

I read that in a book. I always thought the bones that look like elephant ears and the bottom of the spine that looks like a seashell were all one big assembly.





Is there an exercise where you can feel the bones going in different directions?

Is it true that the left pelvis, right pelvis, and sacrum all move independently?
They can move independently, but to a very limited extent. Doubtful that you would ever be able to feel it.
Reply:They do move independently of each other. The movement is very small though. About 1/8 of inch. They move when you walk or run. The joint where the innominate and the sacrum meet is called the sacroiliac joint and can be the cause of extreme pain if it is ever in a state of dysfunction.
Reply:They are connected with connective tissue. The sacrum and coccyx are below the lumber spine or lower back as most call it. Your pelvis bone or iliac crest (left and right) protect the intestines, bladder, and other important organs. For the most part, though, they cannot move separately.
Reply:Just ask any Elvis fan! ;)





Seriously, though, here are some links that might help with your exercise and medical descriptions (for the last link, look at the paragraph starting with "How is this possible?", about half-way down that page).

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