지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The aim of this study was to investigate the alteration of lumbar spine and trunk postures on different load-carrying types and amounts under static loading. Two load-carrying types(unilateral carrying: UC vs. bilateral carrying: BC) and four different loads(0, 5, 10, and 15 kg) were randomly tested in this study. Carrying a heavy bag would affect human body posture, specifically lumbar spine curvature, which is considered as one of sources of back problems. Previous studies have not paid attention to the approach of the multisegment model of the lumbar spine and trunk. This study separated two compartments of trunk segment(the lumbar and thorax) in the analysis. The multisegment model of the lumbar spine in addition to Helen-Hayes marker set was used. Eight motion analysis cameras and a force plate were utilized. Ten male subjects(mean mass, 70.6 ± 3.97 kg; mean height, 178 ± 4.18 m) having no musculoskeletal disease participated in this study. We analyzed trunk angles in three anatomical planes and the spinal curvature in sagittal and frontal planes. Increased loading in both UC and BC significantly resulted in increases in trunk forward lean but only UC induced increases in trunk lateral lean. In addition, increased loading in BC produced flatten lumbar curvature in sagittal plane. As far as coupling motion, subjects tended to use axial rotation of the lumbar spine in transverse plane in response to increased UC loading. Finally, it is concluded that the increased static loading in UC rather than in BC tends to causes combined alterations of the spinal postures(sagittal and transverse planes together), which would be vulnerable to improper mechanical stresses on the spine.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
Al-Khabbaz / 2008 / The effect of backpack heaviness on trunk-lower extremity muscle activities and trunk posture / Gait Posture 28 (2) : 297 ~ 302
Baisden, J.L / 2010 / Normative Lumbar Spine Coupling Relationships between Axial Rotation and Lateral Bending / The Spine J 10 (9) : 124 ~
Birrell, S.A / 2009 / The effect of military load carriage on 3-D lower limb kinematics and spatiotemporal parameters / Ergonomics 52 (10) : 1298 ~ 1304
Brackley, H.M / 2004 / Are Children's Backpack Weight Limits Enough?: A Critical Review of the Relevant Literature / Spine 29 (19) : 2184 ~ 2190
Brackley, H.M / 2009 / Effect of backpack load placement on posture and spinal curvature in prepubescent children / Work 32 (3) : 351 ~ 360
Baisden, J.L / 2010 / Normative Lumbar Spine Coupling Relationships between Axial Rotation and Lateral Bending / The Spine J 10 (9) : 124 ~
Birrell, S.A / 2009 / The effect of military load carriage on 3-D lower limb kinematics and spatiotemporal parameters / Ergonomics 52 (10) : 1298 ~ 1304
Brackley, H.M / 2004 / Are Children's Backpack Weight Limits Enough?: A Critical Review of the Relevant Literature / Spine 29 (19) : 2184 ~ 2190
Brackley, H.M / 2009 / Effect of backpack load placement on posture and spinal curvature in prepubescent children / Work 32 (3) : 351 ~ 360
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