Article

Low back pain (LBP) is a problem that can contribute to functional limitations
and disability. Understanding kinematics during walking can provide a basis for
examination and treatment in people with LBP. Prior research related to
kinematics during walking is conflicting. However, investigators have not
considered regional differences in lumbar spine kinematics or movement-based LBP
subgroups. In the current study, three-dimensional kinematics of the upper and
lower lumbar regions were examined in people with and without LBP. A clinical
examination then was conducted to assign people with LBP to a movement-based
subgroup and differences in kinematics among subgroups were examined. All
subjects displayed significantly more upper than lower lumbar movement in the
axial and coronal planes (P<.01). People with LBP displayed significantly less
overall lumbar rotation than controls (P<.05). There were no significant group
differences in sagittal plane kinematics (P>.05). Walking was limited by or
provocative of pain in <25% of subjects with LBP. There were predictable
differences in kinematics among some movement-based LBP subgroups that approached
statistical significance (P=.09-.11). Walking was provocative of LBP in few
subjects, and differences between people with and without LBP and among LBP
subgroups were minimal. Limitations include that attempts to standardize gait
speed may have minimized observed effects, and there was limited power to detect
movement-based LBP subgroup differences.
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Langue : ANGLAIS