Fontanari, Pierre, Henri Burnet, Marie Caroline Zattara-Hartmann, and Yves Jammes. Changes in airway resistance induced by nasal inhalation of cold dry, or moist air normal individuals. J. Appl. Physiol. 81(4): 1739–1743, 1996.—Nasopulmonary bronchomotor reflexes elicited mechanical irritant stimulation the nose have been described animals asthmatic patients. However, few studies were devoted to consequences breathing dry only on control The present study reported changes interruption (Rint)...

The aim of this study was to establish a relationship between bronchial hyperreactivity carbachol and reflex bronchomotor response the activation cold receptors in nose, also examine whether any differences exist asthmatic patients with or without symptoms rhinitis. changes interrupting resistance (Rint) induced by nasal eupnoeic inhalation (-5 degrees C) dry air were measured 22 normal subjects 18 (nine whom had asthma rhinitis nine without) carbachol. In individuals, challenge significant...

Voluntary apnoea induces several physiological adaptations, including bradycardia, arterial hypertension and redistribution of regional blood flows. Elite breath-hold divers (BHDs) are able to maintain very long apnoea, inducing severe hypoxaemia without brain injury or black-out. It has thus been hypothesized that they develop protection mechanisms against hypoxia, as well a decrease in overall oxygen uptake.To test this hypothesis, the response was studied BHDs non-divers (NDs) during...

The diving response includes cardiovascular adjustments known to decrease oxygen uptake and thus prolong apnea duration. As this is in part characterized by a pronounced heart rate (HR), it thought be vagally mediated.In five professional breath-hold divers (BHDs) less-trained controls (CTL), we investigated whether the fact associated with an increase root mean square successive difference of R-R intervals (RMSSD), time-domain variability (HRV) index. HR behavior arterial saturation (SaO2)...

Pulmonary edema has been reported in breath-hold divers during fish-catching diving activity. The present study was designed to detect possible increases extravascular lung water (EVLW) underwater fishermen after a competition. Thirty healthy subjects were studied. They participated two different 5-h competitions: one organized the winter (10 subjects) and autumn (20 subjects). A questionnaire used record activity note respiratory problems. An increase EVLW investigated from detection of...

Nasal intermittent positive-pressure ventilation (nIPPV) is used for the treatment of respiratory failure in patients with neuromuscular disease. The aim present study was to demonstrate that nIPPV may activate nose receptors, consequence which being reflex changes lung resistance. interrupter resistances (Rint) response were tested before and after local anaesthesia nasal mucosa normal subjects. They compared Rint induced by oral (oIPPV) same individuals. measured during 10-min periods or...

Cardiac changes induced by repeated breath‐hold diving were investigated after a fish‐catching competition. Eleven healthy subjects carried out dives at mean maximal depth of 20 ± 2.7 msw (66 9 fsw) during 5 h. One hour the competition, body mass loss was −1.7 0.5 kg. Most divers suffered from cold and although core temperature remained normal, decrease in cutaneous recorded extremities. Systolic blood pressure reduced both upper lower limbs. Heart rate unchanged, but left ventricular (LV)...

This study was aimed at investigating whether repeated SCUBA diving might induce long term cardiovascular and autonomic modifications. In 11 military mine clearance students, arterial compliance (ultrasound scan of brachial artery ratio stroke volume to pulse pressure: SV/PP), resting spectral analyses heart rate blood pressure variability, a cold pressor test were performed before after 15-week training course. After the training, improved, as indicated by significant increase in (from...

Acute hyperoxic exposure is known to modify cardiovascular parameters like a decrease in cardiac output, arterial vasoconstriction, and autonomic nervous system changes. We hypothesized that repeated hyperbaric exposures, as experienced by military oxygen divers, lead long-term alterations.Arterial blood pressure measurements pulse wave velocity (PWV) recordings were performed during basal conditions 15 elite compared non-diver controls. The two groups matched appropriately for physical...

s and Programme: European Society of Anaesthesiologists; 9th Annual Meeting with the Swedish Anaesthesiology; Gothenburg, Sweden, 7-10 April 2001: Monitoring Equipment Computers

BACKGROUND: Although aquabiking has become widespread, the assessment of intensity for aquatic cycling remains poorly defined.METHODS: This study investigated validity differentiated ratings perceived exertion (dRPE) recorded from chest (RPE-chest) and legs (RPE-legs) during aimed to determine a simple accurate estimate dRPE regulate aquabiking. Twelve active young subjects performed pedaling task on an immersed ergocycle using randomly imposed cadences ranging 50 100 rpm in 3-minute steps...