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Fig. 5 | BMC Musculoskeletal Disorders

Fig. 5

From: Kinematic characterization of clinically observed aberrant movement patterns in patients with non-specific low back pain: a cross-sectional study

Fig. 5

Example of typical lumbopelvic rhythm in a lumbopelvic (FP-PL) angle-angle diagram (a) and a lumbopelvic (FP-PL) coupling-angle diagram (b), and an example of altered lumbopelvic rhythm in a lumbopelvic (FP-PL) angle-angle diagram (c), and a lumbopelvic (FP-PL) coupling-angle diagram (d). Solid line represents individual pattern, dotted line represents mean typical pattern, and dashed lines represent ±1 standard deviation of the typical pattern. “X”s are placed to divide total movement into first, second and last 1/3rd of the movement in the angle-angle diagram (a and c). Typical angle-angle diagram demonstrates the sequence of lumbar spine domination, shared, then pelvis domination; whereas altered lumbopelvic rhythm demonstrates a reversed sequence as pelvis domination in first 2/3rd, then lumbar spine domination (a and c). In coupling-angle diagram (b and d), altered lumbopelvic rhythm pattern (d) is identified if it falls in altered area (coupling angle greater than 59° before completion of 38% of the forward bend)

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