Journal
EUROPEAN SPINE JOURNAL
Volume 16, Issue 6, Pages 829-839Publisher
SPRINGER
DOI: 10.1007/s00586-006-0199-4
Keywords
back education program; prevention; schoolchildren; back function
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The possible effects of back education on children's back function were never evaluated. Therefore, main aim of the present study was to evaluate the effects of back education in elementary schoolchildren on back function parameters. Since the reliability of back function measurement in children is poorly defined, another objective was to test the selected instruments for reliability in 8-11-year olds. The multifactorial intervention lasting two school-years consisted of a back education program and the stimulation of postural dynamism in the class. Trunk muscle endurance, leg muscle capacity and spinal curvature were evaluated in a pre-post design including 41 children who received the back education program ( mean age at post-test: 11.2 +/- 0.9 years) and 28 controls (mean age at post-test: 11.4 +/- 0.6 years). Besides, test retest reliability with a 1-week interval was investigated in a separate sample. Therefore, 47 children ( mean age: 10.1 +/- 0.5 years) were tested for reliability of trunk muscle endurance and 40 children ( mean age: 10.2 +/- 0.7 years) for the assessment of spinal curvatures. Reliability of endurance testing was very good to good for the trunk flexors (ICC = 0.82) and trunk extensors ( ICC = 0.63). The assessment of the thoracic ( ICC = 0.69) and the lumbar curvature ( ICC = 0.52) in seating position showed good to acceptable reliability. Low ICCs were found for the assessment of the thoracic ( ICC = 0.39) and the lumbar curvature ( ICC = 0.37) in stance. The effects of 2 year back education showed an increase in trunk flexor endurance in the intervention group compared to a decrease in the controls and a trend towards significance for a higher increase in trunk extensor endurance in the intervention group. For leg muscle capacity and spinal curvature no intervention effects were found. The small samples recommend cautious interpretation of intervention effects. However, the present study's findings favor the implementation of back education with focus on postural dynamism in the class as an integral part of the elementary school curriculum in the scope of optimizing spinal loading through the school environment.
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