Results 271 to 280 of about 1,420,018 (311)
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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 ...
Roy H, Lidtke +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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Ambulatory Center of Mass Prediction Using Body Accelerations and Center of Foot Pressure
IEEE Transactions on Biomedical Engineering, 2008The center of body mass (COM), center of foot pressure (COP), and body segment acceleration signals are commonly used to indicate movement performance and stability during standing activities and walking. For balance maintenance and restoration, the human brain is capable of estimating and predicting the COM even in the absence of visual or vestibular ...
Aimee L. Betker +2 more
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Effect of Center of Mass Immobilization on Center of Pressure Displacement in Single and Dual-Task
Journal of Motor Behavior, 2021Recent research showed that artificially immobilizing the center of mass (COM) of participants in a standing position increased the center of pressure (COP) variability. This increase has been interpreted as an exploratory behavior. The objectives of this study are to investigate if this exploratory behavior is (1) reflected in other COP variables and (
Lucas, Michaud +2 more
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The pressure distribution of hollow cathode centered negative pressure arc
Journal of Manufacturing Processes, 2016Abstract As a newly modified welding heat source, hollow cathode centered negative pressure arc (HCCNPA) has obvious changes in arc morphology and pressure distribution in comparison with traditional gas tungsten arc (GTA). To better understand of these, in this paper the arc behavior was monitored by using a high-speed image processing system.
Shujun Chen +3 more
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The Use of Pressure Plates for Static Center of Pressure Analysis in Horses
Journal of Equine Veterinary Science, 2015Abstract Stabilographic analysis allows the quantification of balance by tracking center of pressure (COP) displacements in the horizontal plane during quiet standing. The aim of this study was to use pressure plates to measure descriptive stabilographic variables in Puro Sangue Lusitano horses.
Maria Gomes-Costa +6 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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Instability Prediction by Monitoring Center of Pressure During Standing
2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006Incorporating an instability predictor into a portable sensor has a number of clinically relevant applications. This study investigated the feasibility of developing a real-time assessment tool to predict stepping during standing by monitoring Center of Pressure (COP) measurements.
Xavier Tortolero +3 more
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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.
R. A. Eppler, H. G. Drickamer
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Detection of Gait Instability Using the Center of Mass and Center of Pressure Inclination Angles
Archives of Physical Medicine and Rehabilitation, 2006To define a parameter that quantifies balance control during gait and better identifies elderly people who are at a higher risk of falling.Controlled study.University research laboratory.Twelve elderly patients (mean age, 76.9+/-6y) with complaints of imbalance during walking, or with a history of falls, and 12 matched healthy elderly adults.Not ...
Heng-Ju, Lee, Li-Shan, Chou
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