منابع مشابه
Relationship between hyperventilation and excessive CO2 output during recovery from repeated cycling sprints.
The purpose of the present study was to examine whether excessive CO2 output (VCO2excess) is dominantly attributable to hyperventilation during the period of recovery from repeated cycling sprints. A series of four 10-sec cycling sprints with 30-sec passive recovery periods was performed two times. The first series and second series of cycle sprints (SCS) were followed by 360-sec passive recove...
متن کاملElectroencephalographic activity during voluntarily controlled alveolar hyperventilation.
The following results were obtained from a series of investigations in which alveolar hyperventilation was controlled within narrow limits. (1) Delta rhythm was not directly related to alveolar ventilation, alveolar carbon dioxide tension or excretion of carbon dioxide. The appearance of d:lta rhythm was not necessarily associated with loss of consciousness. (2) Frontal alpha rhythm was apparen...
متن کاملHyperventilation-induced hypotension during cardiopulmonary resuscitation.
BACKGROUND A clinical observational study revealed that rescuers consistently hyperventilated patients during out-of-hospital cardiopulmonary resuscitation (CPR). The objective of this study was to quantify the degree of excessive ventilation in humans and determine if comparable excessive ventilation rates during CPR in animals significantly decrease coronary perfusion pressure and survival. ...
متن کاملPhysiological mechanisms of hyperventilation during human pregnancy.
This study examined the role of pregnancy-induced changes in wakefulness (or non-chemoreflex) and central chemoreflex drives to breathe, acid-base balance and female sex hormones in the hyperventilation of human pregnancy. Thirty-five healthy women were studied in the third trimester (TM(3); 36.3+/-1.0 weeks gestation; mean+/-S.D.) and again 20.2+/-7.8 weeks post-partum (PP). An iso-oxic hypero...
متن کاملHyperventilation during electroencephalography: Safety and efficacy
PURPOSE To determine safety and efficacy of hyperventilation (HV) during electroencephalography (EEG). METHODS We report the findings of a prospective multicentre National Service Evaluation of the occurrence of adverse events, seizures and interictal epileptiform discharges seen in association with HV during EEG, in a relatively unselected, largely out patient population of 3475 being invest...
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ژورنال
عنوان ژورنال: Sangyo Igaku
سال: 1963
ISSN: 0047-1879,1881-1302
DOI: 10.1539/joh1959.5.3_212_2