“Study Design Test-retest and case-control study designed


“Study Design. Test-retest and case-control study designed to detect accuracy of cervical spine movements by comparing 3 incrementally difficult movement patterns. An asymptomatic group, a nontrauma neck pain group, and a group with whiplash-associated disorders, Grade II, were tested (n = 18 in each group).

Objective. To determine the test-retest reliability and the discriminative CT99021 validity of the new Fly method.

Summary of Background Data. A lack of reliable and valid measures for grading the deficits of movement control

in the cervical spine makes it impossible to prescribe treatment appropriate to each patient’s respective impairment level.

Methods. Head tracking of a moving fly

which appeared on a computer screen. Easy, medium, and difficult patterns, each of which was repeated 3 times in random order, were tested. Amplitude accuracy (deviation of movements), directional accuracy (time on target, undershoots vs. overshoots) were compared P5091 datasheet across patterns and groups on 2 occasions, 1 week apart.

Results. The intraclass correlation coefficient(2,1) ranged from 0.53 to 0.82 for both variables, except for the subvariable “”overshoots”" (0.14-0.42). The limits of agreement (LOA) were progressively wider across patterns (easy-medium-difficult) and groups (asymptomatic-nontrauma-whiplash-associated disorder). Analysis of variance with repeated measures revealed significant differences between

patterns within each group and between groups respectively for both outcome variables (P < 0.001).

Conclusion. The Fly method provides reliable and valid measures for movement control of the cervical spine. Higher means and wider LOA across patterns and subject groups are reasoned to be inherent in the new Fly method and the subject groups tested. The wide LOA in the symptomatic groups supports the development of a normative database. The new Fly method can be used both as an assessment and a treatment method and ensures gradual progression in the treatment for deficits of movement control in patients with neck pain.”
“A bisphenol A-based epoxy resin was modified SYN-117 with pristine sepiolite and an organically surface-modified sepiolite and thermally cured using two different curing agents: an aliphatic and a cycloaromatic diamine. The nanocomposites were characterized by dynamic mechanical analysis (DMA), rheology, thermogravimetric analysis (TGA), and electron microscopy. The initial sepiolite-epoxy mixtures show a better dispersion for the sepiolite-modified system that forms a percolation network structure. Mechanical properties have also been determined. The flexural modulus of the epoxy matrix slightly increases by the incorporation of the organophilic sepiolite.

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