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Journal of the Korean Academy of Rehabilitation Medicine 2003;27(3):424-432.
Measurements of Lumbar Segmental Range of Motion with 3-dimensional Motion Analysis in Healthy Adults.
Bang, Moon Suk , Han, Tae Ryoon , Choi, Joong Kyung , Kim, Sang Jun , Moon, Kwak Jae , Jo, Young Jin
1Department of Rehabilitation Medicine, Seoul National University College of Medicine, Korea.
2Medi-Homes Clinics, Korea. cjk3@medigate.net
3Seoul National University College of Medicine, Korea.
정상 성인의 3차원 동작 분석법에 의한 요추부 분절별 관절 운동 범위
방문석, 한태륜, 최중경1, 김상준, 곽재문2, 조영진2
서울대학교 의과대학 재활의학교실, 1메디홈즈의원, 2서울대학교 의과대학 의학과
To measure the lumbar segmental range of motion (ROM) with 3-dimensional motion analysis system and compare the results with radiologic ROM measurements.

Ten healthy adult volunteers were included. We attached surface markers at the corresponding skin surface of each lumbar vertebral bodies and measured lumbar segmental ROM in flexion-extension, right bending, left bending, axial rotation with 3-D motion analysis. We compared some of the results with radiologic segmental ROM measurements.

In 3-D motion analysis, segmental ROM of flexion and extension, right bending, left bending, right rotation, left rotation were, respectively: 10.1o, 45o, 3.5o, 1.7o and 1.9o (L1-L2); 17.9o, 6.2o, 5.1o, 1.4o and 1.1o (L2-L3); 15.0o, 7.2o, 4.9o, 2.1o and 1.1o (L3-L4); 14.9o, 5.8o, 4.6o, 1.7° and 1.6° (L4-L5); 10.6o, 4.9o, 3.8°, 2.6° and 0.8° (L5-S1). There was no statistically significant difference in segmental ROM between 3-D motion analysis measurements and radiologic measurements except L5-S1 right bending, L2-L3 and L5-S1 left bending. No statistical significant difference in lumbar flexion and bending ROM was found between two methods.

3-D motion analysis is a useful method when measuring the lumbar segmental range of motion and it has an advantage to analyze segmental lumbar motion with three directions simultaneously. (J Korean Acad Rehab Med 2003; 27: 424-432)

Key Words: Three dimensional motion analysis, Lumbar segmental range of motion, Flexion-extension, Lateral bending, Axial rotation


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