Body balance under ametropic conditions induced by spherical lenses in an upright position

Body balance under ametropic conditions induced by spherical lenses in an upright position

[Purpose] To investigate the changes in body balance under ametropic conditions induced by spherical lenses in an upright position. [Subjects and Methods] Twenty subjects (10 males, 10 females) of average age 23.4±2.70 years participated and they were fully corrected by subjective refraction. To induce ametropic conditions (binocular myopia and hyperopia), lenses of ±0.50 D, ±1.00 D, ±1.50 D, ±...

Balance Maintenance in the Upright Body Position: Analysis of Autocorrelation

The present research aimed to analyze values of the autocorrelation function measured for different time values of ground reaction forces during stable upright standing. It was hypothesized that if recording of force in time depended on the quality and way of regulating force by the central nervous system (as a regulator), then the application of autocorrelation for time series in the analysis ...

Periodic Solutions Induced by an Upright Position of Small Oscillations of a Sleeping Symmetrical Gyrostat

The aim of this paper is to provide sufficient conditions for the existence of periodic solutions emerging from an upright position of small oscillations of a sleeping symmetrical gyrostat with equations of motion ẍ+ αẏ − βx = εF1 (t, x, ẋ, y, ẏ) , ÿ − αẋ− βy = εF2 (t, x, ẋ, y, ẏ) . being α and β parameters satisfying ∆ = α2−4β > 0 and β− α 2 2 ± α √ ∆ 2 < 0, ε a small parameter and, F1 and F2 ...

The Effect of Semi-Upright Position on Incidence and Intensity of Chemotherapy-Induced Nausea and Vomiting

Effectiveness of Outcome-Based Education on Maintaining Semi-Upright Position of Patients Under Mechanical Ventilation

Background: According to studies, despite the proven and effective role of mechanical ventilation on patients with respiratory failure, the positive effects of semi-upright position on oxygenation and ventilation of patients under mechanical ventilation and nurses&rsquo; training about them have been neglected. This study aimed to investigate the effect of outcome-based education of nurses on m...