Thoracic spine pain in the general population: prevalence, incidence and associated factors in children, adolescents and adults. A systematic review.

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Cross-sectional study of the isokinetic muscle trunk strength among school children.
Author(s): Briggs, AM; Smith, AJ; Straker, LM; Bragge, P
Journal: BMC Musculoskelet Disord 2009 Sep 25; Vol. 10; Page(s) 77
[Medline ID - 8362327]

Our surveys have shown lifetime prevalence of L.BP. over 30% among schoolchildren. The purpose of this study was to evaluate the relationship between back and isokinetic trunk strength, anthropometric parameters, and sports activities. One hundred and seventeen healthy children aged 10-16 years were included. All these volunteers had semi-structured interview, anthropometric and dynamic strength measurements. Lifetime prevalence of back pain was 44.5% and point prevalence was 13%. In this cross-sectional study, anthropometric and strength profiles were significantly related to age and gender. Non specific low back pain was not correlated to trunk muscle strength and/or sports activities.

Spine (Phila Pa 1976). 1993 Jul;18(9):1199-205.