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- W2047121057 abstract "Summary Objective To investigate whether there is a difference in the posture of school children walking with a backpack versus pulling a trolley. Design Comparative, controlled, pilot trial. Setting “Grundschule Fallersleben” – primary school in Germany. Subjects Thirty-four school children between 6 and 8 years of age. Methods Initially, neutral posture was measured in a standing position. All children were then asked to walk a predetermined route without intervention for approximately 7 min. This was followed by walking the same route with either a backpack (n = 19) or trolley (n = 15). Deviations from neutral of the thoracic and lumbar spine (flexion, extension, lateral flexion and rotation) from the final 30 s of the imaging sequences were taken and analysed. Results Compared to unburdened walking, walking with a backpack led to a statistically significant (p ≤ 0.05) increase in thoracic extension (3.91°, 95% CI = 3.35–4.46) and right lumbar lateral flexion (2.29°, 95% CI = −3.41 to −1.18), and a statistically significant decrease of lumbar flexion (2.2°, 95% CI = 0.34–4.06). In contrast, walking with a trolley increased extension (1.4°, 95% CI = 0.72–2.08), right lateral flexion (1.24°, 95% CI = −1.91 to −0.57) and right rotation (3.09°, 95% CI = −3.85 to −2.32) of the thoracic spine, and led to a statistically significant increase in left rotation (3.57°, 95% CI = 2.58–4.55) of the lumbar spine. Comparing the backpack and trolley groups showed a statistically significant (p ≤ 0.05) increase in thoracic extension and right lumbar lateral flexion in the backpack group. Posture during trolley pulling was characterized by a statistically significant (p ≤ 0.05) increase in right thoracic and left lumbar rotation. Conclusion Participants adopted asymmetric postures during walking with a backpack and pulling a trolley. However, the trolley group was characterised by spinal rotation which possibly adds an extra source of stress. This suggests that school children should use backpacks rather than trolleys when the weight is within recommended limits." @default.
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- W2047121057 date "2010-12-01" @default.
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- W2047121057 title "Comparison of the posture of school children carrying backpacks versus pulling them on trolleys" @default.
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- W2047121057 doi "https://doi.org/10.1016/j.clch.2010.09.001" @default.
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