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Generalizability of center of pressure measures of quiet standing
Gait & Posture, 2007Center of pressure (COP) measures are commonly used as indicators of balance and postural control. At present, there are no universally accepted standards in research investigating fluctuations in the COP with regard to the number of trials or the length of a given trial.
Karl S. Rosengren +3 more
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On the center of pressure of conical bodies
Fluid Dynamics, 1980The profiles of conical bodies for which the position of the center of pressure in a supersonic flow with symmetry plane does not depend on the flow parameters are considered. The theoretical investigation of the aerodynamic characteristics of circular cones [1] has shown that their center of pressure does not depend on the angle of attack α when the ...
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2021
Adolescent idiopathic scoliosis (AIS) has been postulated to affect gait patterns and postural stability due to its effect on center of body mass. 1) Determine the correlation between Cobb angle and COP in the anterior-posterior (AP) direction, COP in the medial-lateral (ML) direction, COP oscillation (COP-O) from midline walking, peak pressures, and ...
A Duey-Holtz +4 more
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Adolescent idiopathic scoliosis (AIS) has been postulated to affect gait patterns and postural stability due to its effect on center of body mass. 1) Determine the correlation between Cobb angle and COP in the anterior-posterior (AP) direction, COP in the medial-lateral (ML) direction, COP oscillation (COP-O) from midline walking, peak pressures, and ...
A Duey-Holtz +4 more
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Foot Center of Pressure and Medial Knee Osteoarthritis
Journal of the American Podiatric Medical Association, 2010Background: We sought to determine whether symptomatic medial knee osteoarthritis is associated with aberrant loading across the foot during gait. Methods: Twenty-five individuals with medial knee osteoarthritis were compared with 25 controls.
R.H. Lidtke +4 more
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Microcantilevers Bend to the Pressure of Clustered Redox Centers
Langmuir, 2014The redox-activated deflection of microcantilevers has attracted interest for nanoactuation and chemical sensing. Microcantilever sensors are devices that transduce (bio)chemical reactions into a quantifiable nanomechanical motion via surface stress changes. Despite promising applications in analytical science, poor signal-to-noise ratios and a limited
Toader, Eric R. Dionne, Antonella Badia
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Management of Pressure Sores in a Specialty Center
Plastic and Reconstructive Surgery, 1979We report a study on the surgical management of 145 pressure sores in 115 patients treated in a spinal cord injury center. There is a definite trend toward better education of these patients, who do not develop their first pressure sores until years following the injury.
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Effect of Pressure on the Spectra of Color Centers
The Journal of Chemical Physics, 1960The effect of pressure on the spectra of certain color centers produced in the alkali halides by x irradiation has been measured to pressures as high as 166 000 atm. For the F center a shift to higher energies with increasing pressure is observed.
Harry G. Drickamer, R. A. Eppler
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Motion sickness preceded by unstable displacements of the center of pressure
Human Movement Science, 2006We exposed standing participants to optic flow in a moving room. Motion sickness was induced by motion that simulated the amplitude and frequency of standing sway. We identified instabilities in displacements of the center of pressure among participants who became sick; these instabilities occurred before the onset of subjective motion sickness ...
Bonnet, Cédrick T. +4 more
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Validating Center-of-Pressure Balance Measurements Using the MatScan® Pressure Mat
Journal of Sport Rehabilitation, 2018Context: Measurements of center-of-pressure (COP) excursions during balance are common practice in clinical and research settings to evaluate adaptations in postural control due to pathological or environmental conditions. Traditionally measured using laboratory force plates, pressure-mat devices may be a suitable option for clinicians and scientist to
Jay Hertel +3 more
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Aerodynamic Center and Center of Pressure of an Airfoil at Supersonic Speeds
Journal of the Aeronautical Sciences, 1947IT is WELL KNOWN that according to the Ackeret (or linearized) theory for supersonic flow both the aerodynamic center and the center of pressure of a symmetrical airfoil are always at the midpoint of the chord. It appears, however, that no general formulas have as yet been given for determining the aerodynamic center and center of pressure of a ...
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