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...

PURPOSE OF THE STUDY Endoscopy Normal Reflux Disease (ENRD) is a common presentation of reflux disease. These patients are symptomatic but do not have abnormal endoscopy findings. They may have pathological intraesophageal reflux. Lifestyle modifications are the mainstay of management of these patients. Posture plays an important role in their management. It was felt that exact quantification o...

BACKGROUND/AIMS Most recent studies using high-resolution manometry were based on supine liquid swallows. This study was to evaluate the differences in esophageal motility for liquid and solid swallows in the upright and supine positions, and to determine the percentages of motility abnormalities in different states. METHODS Twenty-four asymptomatic volunteers and 26 patients with gastroesoph...

It is presently unclear how the fast and slow components of pulmonary oxygen uptake (VO(2)) kinetics would be altered by body posture during heavy exercise [i.e., above the lactate threshold (LT)]. Nine subjects performed transitions from unloaded cycling to work rates representing moderate (below the estimated LT) and heavy exercise (VO(2) equal to 50% of the difference between LT and peak VO(...

INTRODUCTION The supine sleep position is recommended to reduce sudden infant death syndrome risk. Swaddling may improve adherence with supine placement. AIM To assess knowledge, attitudes, and practice regarding swaddling among adult caregivers of 0- to 3-month-old infants. METHODS Cross-sectional descriptive survey. RESULTS All 103 adults interviewed had swaddled their infant. Common re...

In human and chimpanzee infants, neonatal rightward supine head orientation bias predicts later right hand use preference. In an evolutionarily older primate species such as the rhesus monkey, a left hand preference has been reported, but there are no data on head orientation biases. Supine head orientation bias was measured experimentally in 16 rhesus monkey neonates and compared with prone he...

OBJECTIVE Gel pads are commonly used by occupational therapists in acute care settings to reduce pressure on the coccyx and sacrum in supine. The purpose of this study was to determine the pressure-reducing capabilities of gel pads used in supine and the resultant potential impact on pressure ulcer management. METHOD A pressure-mapping system was used to measure interface pressures between th...

OBJECTIVES To assess the outcomes of performing percutaneous nephrolithotomy (PCNL) in a modified supine position, more feasible for surgeons, anaesthetists, and operating theatre staff, as well as for the patient himself, and evaluating it in comparison to the standard prone position. PATIENT AND METHODS A retrospective, case-control study was conducted between January 2011 and December 2015...