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Calibration of a bubble evolution model to observed bubble incidence in divers
helium heliox nitrogen model air chamber
2009/6/12
The method of maximum likelihood was used to calibrate a probabilistic bubble evolution model against data of bubbles detected in divers. These data were obtained from a diverse set of 2,064 chamber m...
Transcranial Doppler ultrasound in commercial air divers: a field study including cases with right-to-left shunting
decompression air chamber Transcranial Doppler ultrasound commercial patent foramen ovale
2009/6/12
Many cases of decompression illness occur in divers using recommended decompression tables. Doppler ultrasound has been used for over 20 yr and has shown the presence of venous bubbles in asymptomatic...
Incidence of bony outgrowths of the external ear canal in U.S. Navy divers
cold ear bony outgrowths
2009/6/12
Bony outgrowths of the temporal bone into the external ear canal are common in populations that participate in cold water activities. The incidence in professional divers is unknown. Eighty-seven U.S....
Diving patterns of ama divers of Hegura Island, Japan
decompression Ama divers patterns Japan
2009/6/9
recorded during the entire work shift in four cachido and four funado divers of Hegura Island, Japan. All Hegura divers (cachido and funado alike) were female and habitually wore wet suits. Cachidos d...
Responses to underwater exercise in scuba divers differing in trait anxiety
exercise CO2 carbon dioxide anxiety psychological panic
2009/6/8
Fifteen male scuba divers performed underwater leg ergometer exercise in an effort to determine if trait anxiety was related to their physiologic or perceptual responses. Psychologic assessment comple...
Divers' pulmonary function after open-sea bounce dives to 10 and 50 meters
carbon monoxide pulmonary
2009/6/8
We have studied pulmonary function before and 2 h after open sea dives to 10 and 50 m and 24 h after the dive to 10 m. Nine trainee divers participated in the dive to 10 m and 17 in the dive to 50 m. ...
Circulating bubbles and breath-hold underwater fishing divers: a two-dimensional echocardiography and continuous wave Doppler study
decompression pulmonary breath-hold
2009/6/8
Since the 1960s,decompression illness after breath-hold diving has been widely debated. The aim of this study was to detect circulating bubbles after breath-hold diving in underwater fishing divers. W...
Control of blood glucose in a group of diabetic scuba divers
exercise diabetic hyperbaric diver
2009/6/8
A preliminary study to examine the hypothesis that the ability of well-controlled (defined as no hypoglycemic episodes within the last 12 mo., HbAlc < 9.0%, and none of the long-term complications of ...
Pulmonary edema of scuba divers
cold decompression pulmonary cardiovascular dry immersion Pulmonary edema
2009/6/8
A syndrome of acute pulmonary edema has been previously reported among scuba divers in cold, European waters. Because of the temperatures involved, the name "cold-induced pulmonary edema" was coined i...
Intrathoracic pressure changes after Valsalva strain and other maneuvers: implications for divers with patent foramen ovale
exercise decompression nitrogen ear patent foramen ovale PFO
2009/6/8
Scuba divers with patent foramen ovale (PFO) may be at risk for paradoxical nitrogen gas emboli when performing maneuvers that cause a rebound blood loading to the right atrium. We measured the rise a...
Diving pattern and work schedule of construction well divers in Taiwan
decompression dysbaric osteonecrosis commercial
2009/6/8
Construction well divers in Taiwan reportedly suffer a high prevalence of dysbaric osteonecrosis. We studied five divers working at the same construction site. We recorded their diving methods, diving...
Oxidative stress during a 3.5-hour exposure to 120 kPa(a) PO2 in human divers
dry hyperbaric human superoxide dismutase air nitrox
2009/6/8
We examined the effect of a prolonged dive on measures of oxidative stress in human divers. Ten subjects, wearing dry suits, completed mental tasks while lying quietly at 4.6 m fresh water for 3.5 h. ...
Effects of repeated apneas on apneic time and diving response in non-divers
cardiovascular breath hold carbon dioxide
2009/6/8
Human breath-hold divers usually perform a series of dives with short intervals. Repeated apneas prolong apneic time, and an accentuated diving response has been suggested to be the cause. The aim of ...
Noise-induced neurologic disturbances in divers exposed to intense water-borne sound:two case reports
noise hearing divers
2009/6/8
Divers may be exposed to intense noise underwater. Two cases of neurologic disturbances during experimental exposures to 15 min of continuous underwater sound are described. Sound exposure in the firs...
Doppler-echocardiographic findings in professional divers
saturation exercise cardiac commercial echocardiographic
2009/6/5
To determine if professional diving leads to morphologic and/or functional cardiologic changes, Doppler-echocardiography was performed in 20 professional saturation divers (average 15 yr diving experi...