The periaqueductal gray matter is an essential neural substrate for central integration of defense behavior and accompanied autonomic responses. The dorsal half of the periaqueductal gray matter (dPAG) is also involved in mediating emotional responses of anxiety and fear, psychological states that often are associated with changes in ventilation. However, information regarding respiratory modul...

A 72-year-old diabetic male was referred by his general practitioner because of gradually increasing diarrhoea and abdominal pain over several days. On examination, he had mild acidotic breathing, and he appeared slightly dehydrated. The abdomen was distended and tender on palpation. Blood chemistry revealed slight derangement of his diabetes, and a neutrophil count of 12 x 10/l, liver enzymes ...

It is not completely described how aging affect ventilatory kinematics and what are the mechanisms adopted by the elderly population to overcome these structural modifications. Given this, the aim was to evaluate the acute effects of different inspiratory efforts on ventilatory pattern and chest wall compartmental distribution in elderly women. Variables assessed included: tidal volume (Vt), to...

PURPOSE The object of this study was to examine the effect of posture on breathing in brass players. Breathing when standing was compared with sitting erect on a flat, downward or upward sloping seat, or on a reclining seat. METHODS Spirometry was used to measure aspects of lung function. Muscle activity and respiratory movements during different playing tasks were recorded using electromyogr...

Active Cycle of Breathing Technique (ACBT) is a breathing exercise technique which used to remove secretions from the lungs. So this study aimed assess effect active cycle on patients' outcomes regarding abdominal trauma. A quasi experimental design was used.Setting: This carried out in trauma intensive care unit at Assuit University Hospital. Sample: 60 adult critically ill patients with Tools...

The main objective was to assess the effects of abdominal breathing (AB) versus subject's own breathing on femoral venous blood flow (Qfv) and their repercussions on central hemodynamics at rest and during exercise contrasting healthy subjects versus heart failure (HF) patients. We measured esophageal and gastric pressure (PGA), Qfv and parameters of central hemodynamics in eight healthy subjec...