Institution
University of Nebraska Omaha
Education•Omaha, Nebraska, United States•
About: University of Nebraska Omaha is a education organization based out in Omaha, Nebraska, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 4526 authors who have published 8905 publications receiving 213914 citations. The organization is also known as: UNO & University of Omaha.
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TL;DR: Impaired vision and a compliant surface represented constraints to postural control that caused increases in the amount (PL) and area (EA) of sway, but decreases in its coordinative twisting/turning (PLn) and temporal complexity (SEn).
Abstract: Postural sway was assessed [via center of pressure (COP) 95% elliptical area (EA), path length (PL), normalized path length (PLn) and sample entropy (SEn)] in four conditions of bipedal upright stance [compliant (Foam) vs. non-compliant (Hard) with eyes-open (EO) vs. eyes-closed (EC)] prior to, and immediately following, a six-week balance training intervention in a group of healthy adults (N = 26). The intervention was comprised of nine exercises progressed in difficulty based on the subjective assessments of individual competency. Results showed that EA and PL were increased, while PLn and SEn were decreased, in EC and Foam stance conditions (collapsed across effects of balance training). Interpretations were that restricted vision and a compliant surface represented constraints to postural control that caused increases in the amount (PL) and area (EA) of sway, but decreases in its coordinative twisting/turning (PLn) and temporal complexity (SEn). It was argued that these changes might represent compensatory adaptations in effort to maintain postural control given the demands of the imposed constraints. Balance training caused no change to EA, but did result in decreased PL, PLn, and SEn for stance conditions performed on the Foam (either EO or EC). These changes were interpreted to reflect improved postural control, potentially through the learned adoption of a more deterministic postural control strategy that is uniquely defined by the constraints imposed on upright stance by the compliant surface.
77 citations
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University of Bergen1, Brigham and Women's Hospital2, Haukeland University Hospital3, Research Triangle Park4, Oslo University Hospital5, University of Barcelona6, University of Liverpool7, University of Nebraska Omaha8, Hvidovre Hospital9, Maastricht University10, University of British Columbia11, University of Cambridge12
TL;DR: The results suggest that PI MZ individuals may be slightly more susceptible to the development of airflow obstruction than PI MM individuals.
77 citations
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TL;DR: It is argued that target resolution provides better insight into the exactness of position sense than does the usual measure of accuracy based on mean or constant error.
Abstract: In this paper, we present a method for assessing the exactness of sensing and setting the positions of joints and limbs, using a measure we call target resolution. Target resolution, derived from information theory but ultimately based on variance, estimates the fewest number of discrete, equally spaced targets required within a range to provide the maximum possible information transfer from any target set. We argue that target resolution provides better insight into the exactness of position sense than does the usual measure of accuracy based on mean or constant error. Studies have shown that measures of mean error in setting or indicating positions of joints or limbs exhibit lability; they drift and show considerable sensitivity to factors such as previous positions of the limb and learning. We derive the equation for calculating target resolution and give example resolutions for several joints we have tested. Target resolution often gives a quite different impression of proprioceptive exactness than do measures of accuracy based on mean error.
77 citations
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TL;DR: The data suggest that the central gain of the cardiac sympathetic afferent reflex is enhanced in dogs with heart failure and central angiotensin II plays an important role in this enhanced response.
Abstract: Previous studies from our laboratory have shown that the cardiac sympathetic afferent reflex is enhanced in dogs with experimental heart failure. The aim of the present study was to determine if th...
77 citations
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TL;DR: This investigation quantitatively characterized the certainty of the aging neuromuscular system in selecting a joint range of motion during gait based on the statistical concept of entropy and indicated that aged individuals demonstrated statistically less certainty for the knee and hip.
77 citations
Authors
Showing all 4588 results
Name | H-index | Papers | Citations |
---|---|---|---|
Darell D. Bigner | 130 | 819 | 90558 |
Dan L. Longo | 125 | 697 | 56085 |
William B. Dobyns | 105 | 430 | 38956 |
Eamonn Martin Quigley | 103 | 685 | 39585 |
Howard E. Gendelman | 101 | 567 | 39460 |
Alexander V. Kabanov | 99 | 447 | 34519 |
Douglas T. Fearon | 94 | 278 | 35140 |
Dapeng Yu | 94 | 745 | 33613 |
John E. Wagner | 94 | 488 | 35586 |
Zbigniew K. Wszolek | 93 | 576 | 39943 |
Surinder K. Batra | 87 | 564 | 30653 |
Frank L. Graham | 85 | 255 | 39619 |
Jing Zhou | 84 | 533 | 37101 |
Manish Sharma | 82 | 1407 | 33361 |
Peter F. Wright | 77 | 252 | 21498 |