There are a number of potential physical advantages to performing orotracheal intubation in an upright position. The objective of this study was to measure the success of intubation of a simulated patient in an upright versus supine position by novice intubators after brief training. This was a cross-over design study in which learners (medical students, physician assistant students, and parame...

OBJECTIVE To compare cardiovascular and ventilatory variables in upright versus aero cycle ergometry at submaximal and maximal exercise intensities in untrained cyclists. METHOD Ten physically active men (mean (SD) age 19.1 (1.10) years) who were unfamiliar with aerobars underwent maximal exercise testing and steady state cycling at 50, 100, and 150 W. RESULTS Participants had significantly...

The restoration of upright balance after a perturbation relies on highly automated and, to a large extent, stereotyped postural responses. Although these responses occur before voluntary control comes into play, previous research has shown that they can be functionally modulated on the basis of cognitive set (experience, advanced warning, instruction, etc.). It is still unknown, however, how th...

Objective: The purpose of this study was to find out the indicators distribution plantar pressure in two-legged stands with open and closed eyes experienced rhythmic gymnasts. Materials methods: 31 highly qualified gymnasts (candidates masters sports Russia), age 18.5 ± 0.5 years, experience gymnastics 13.5 1.5, performed three upright postures on footscan ® podometric platform RSscan: main sta...

The ability to correct balance disturbances is essential for the maintenance of upright stability. Although information about how the central nervous system controls balance reactions in humans remains limited, recent literature highlights a potentially important role for the cerebral cortex. The objective of this study was to determine the neural source of the well-reported balance-evoked N1 r...

OBJECTIVE To determine the effects of upright posture compared with supine position on the dominant atrial cycle length (DACL) in patients with chronic atrial fibrillation. DESIGN The power/frequency spectrum of QRST suppressed lead V1 ECG was studied in 14 patients in the supine position and during the head up tilt table test. The DACL changes were compared with changes in heart rate and blo...

Although computed tomographic (CT) myelography and magnetic resonance imaging (MRI) are used for assessing lumbar disc herniations (LDH), they cannot provide images when patients are standing or walking, whose CT myelograms and MRI images show only slight disc bulging. The purpose of this study was to evaluate the usefulness of upright myelography. We examined by myelography in both an upright ...

For consciously performed motor tasks executed in a defined and constant way, both motor imagery (MI) and action observation (AO) have been shown to promote motor learning. It is not known whether these forms of non-physical training also improve motor actions when these actions have to be variably applied in an unstable and unpredictable environment. The present study therefore investigated th...

Currently, inertial sensors are often used to study balance in an upright stance. There various options for recording data with different locations and numbers of used. Methods processing presentation also differ significantly published studies. We propose a certain technical implementation the method previously tested primary data. In addition, were processed along three mutually perpendicular...

This article presents a novel 3D inverted pendulum that can balance on one of its corners using only single reaction wheel. is achieved by careful design the mass moment inertia in such way along two principal tilt axes significantly different. The consequence time-scale separation underlying dynamics, which renders system controllable. We show controllability maximized when ratio values amount...