Trunk motor control deficits in acute and subacute @entity1643 are not associated with XXXX or fear of movement.

@entity1 @entity1643 @entity3325 @entity73 @entity158 @entity717 @entity8018
BACKGROUND CONTEXT: A subgroup of @entity1 with acute to subacute @entity1643 ( @entity1643 ) presenting with trunk movement control deficits, @entity158 provocation with segmental testing, and segmental @entity8018 have been clinically identified as having @entity717 ( @entity717 ) of the trunk. It is hypothesized that these @entity1 have proprioceptive, postural, and movement @entity73 of the trunk associated with @entity1643 . Although trunk @entity73 have been identified in @entity1 with chronic @entity1643 , they have not been investigated in this subgroup or closer to symptom onset. PURPOSE: The purpose of the study was to identify trunk motor control (postural control and movement precision) impairments in a subgroup of @entity1 with acute to subacute @entity1643 who have been clinically identified to have @entity717 and determine association of these impairments with @entity158 and fear of movement. STUDY DESIGN/SETTING: The study design includes observational design, university biomechanics laboratory, and clinical practice. @entity1 SAMPLE: Thirty-three @entity1 with acute to subacute @entity1643 presenting with trunk @entity717 and 33 healthy controls matched with gender, age, and body mass index were identified. OUTCOME MEASURES: Self-report measures included Numeric Pain Rating Scale, Oswestry Disability Index Questionnaire, and Fear-Avoidance Beliefs Questionnaire and physiologic measures included postural control and movement precision. METHODS: Center-of-pressure movement was measured while subjects attempted to volitionally control trunk posture and movement while sitting on a platform with a hemisphere mounted underneath. This created an unstable surface that required coordinated trunk control to maintain an upright seated posture. Postural control was tested using eyes-open and -closed balance protocols. Movement precision was tested with a dynamic control test requiring movement of the center of pressure along a discrete path. Group trunk motor control performance was compared with analysis of variance and t test. Performance association with @entity158 and fear of movement were assessed with Pearson correlations. RESULTS: @entity1 ' postural control in the eyes-closed condition (p=.02) and movement precision (p=.04) were significantly impaired compared with healthy controls, with moderate-to-large group difference effect sizes. These trunk motor @entity73 were not significantly associated with the @entity1 self-reported @entity158 characteristics and fear of movement. CONCLUSIONS: @entity1 with clinical identification of trunk @entity717 demonstrated decreased trunk motor control, suggesting that @entity3325 , or central processing occur early in the back @entity158 episode. This information may help to guide interventions to address these specific limitations, improving delivery of care.
