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OBJECTIVE To assess the effect of a combined exercise and motivation program on the compliance and level of disability of patients with chronic and recurrent low back pain. DESIGN A double-blind prospective randomized controlled trial. SETTING Physical therapy outpatient department, tertiary care. PATIENTS Ninety-three low back pain patients were(More)
STUDY DESIGN A prospective clinical randomized controlled trial. OBJECTIVES To determine the long-term effect of a combined exercise and motivational program on the level of disability of patients with chronic and recurrent low back pain (LBP). SUMMARY OF BACKGROUND DATA There is agreement on the importance of exercise during the course of chronic LBP.(More)
Whether essential processing of spatial information is lateralized asymmetrically in the human cortex is still a matter of debate. In this study, items of an Item Response Theory calibrated test for spatial ability were used to ensure stimulus homogeneity and validity. Subjects were preselected as extreme groups of good and poor spatializers. Mapping of(More)
OBJECTIVE To determine whether chewing of gum facilitates spatial task performance in healthy participants, two behavioral experiments were performed. DESIGN In the first experiment, spatial task performance of 349 men and women preceding and after treatment administration (saccharated chewing gum, sugar-free chewing gum, no chewing gum) was assessed(More)
The aim of this study was to investigate associations between the location of osteoporotic vertebral fractures and the patient’s localization of pain. Fifty-one consecutive patients (m 6, f 45; average age 74.8 years) with diagnosed osteoporotic vertebral fractures between T8 and L2 were included in the study. Exclusion criteria were fractures above T8 and(More)
An important question in educational research is whether the imparting of knowledge and skills also improves pupils' intelligence. This aspect of transfer of learning is difficult to study within the framework of educational research. The longitudinal study presented here shows, based on sophisticated test materials and methods of analysis, that courses in(More)
The microparticle enzyme immunoassay (MEIA) for detection of Toxoplasma specific IgG antibodies was compared to the Sabin-Feldman dye test (DT) as reference in 843 serum samples from a cohort of 757 pregnant women. The overall correlation for individual measurements was highly significant (R = 0.9446, p < 0.0001). DT and specific IgM combined allowed(More)
Peer review is a widely accepted instrument for raising the quality of science. Peer review limits the enormous unstructured influx of information and the sheer amount of dubious data, which in its absence would plunge science into chaos. In particular, peer review offers the benefit of eliminating papers that suffer from poor craftsmanship or(More)
This paper deals with three studies on the computer-based, automatic generation of algebra word problems. The cognitive psychology based generative/quality control frameworks of the item generator are presented. In Study I the quality control framework is empirically tested using a first set of automatically generated items. Study II replicates the findings(More)
The X-linked recessive gene hypothesis, a theory to predict the mode of genetic inheritance of spatial ability, was tested using a new Rasch-calibrated space test, the Three-dimensional Cube Test (Gittler, 1990). This allowed solving the homogeneity problem (insufficient unidimensionality of test material) by which earlier research in this field was(More)