An observation of physiological and pathological state of lumber pelvic rhythm.

概要

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We observed lumbar pelvic rhythm with videocamera making landmarks on the body surface. Materials were divided into 3 groups as follows; control group (average age, 17.4 years), middle aged group (average, 35.4 years) and patient group with lumbar osteoarthritis (average 75.4, years). In control group, activities occured in both lumbar spine and pelvis on any range of trunk flexion. The ratio of lumbar flexion to trunk was significantly greater in below 50 degrees of trunk flexion than in above 50 degrees. We supposed this discrepancy to be lumbar pelvic rhythm. The rhythm which had been seen in control group was not obvious in middle aged group and patient group. The ratio of lumbar flexion to trunk flexion was significantly smaller in patient group than in the others.
西日本整形・災害外科学会の論文