history of underwater diving dates back to antiquity. breath-hold technique in diving was known to the ancient nations. however, deep diving progressed only in the early decades of the 19 th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20 th century. currently, diving is performed for ...

a 35 year old diver comes to your office. he had hyperglycemia in his last check up. he asks if he can steel dive in spite of hyperglycemia. we reviewed the recent studies about diabetic persons who dive. recent studies have shown that well controlled diabetic persons may be permitted to dive, but if they have any problem such as diabetic nephropathy, retinopathy, neurological and cardiac probl...

background :there is not any data available about the effect of high bar pressure condition on intracranial pressure. in this study, the effect of diving on the optic nerve and sheath diameters as non-invasive markers of intracranial pressure has been investigated.   methods : twenty professional male divers from twenty one volunteers were chosen for this cross-sectional study. only one person ...

BACKGROUND Diving is a popular sport, and some recreational divers have medical risk factors. Their health can be endangered by high extracorporeal (ambient) pressure and its many systemic effects. METHODS We review relevant publications on free (breath-hold) diving, scuba diving, medical evaluation for diving, barotrauma, decompression sickness, and diving with medical risk factors, which we...

With the rapid development of skin, scuba, and saturation diving, the medical profession and established diving organizations have made a concerted effort to inform diving enthusiasts of the potential dangers one may encounter in the aquatic environment. However, the phenomenon of thoracic squeeze is only cursorily discussed in recognized diving texts, and a review of recent diving literature f...

During human brain development, cortical gyrification, which is believed to facilitate compact wiring of neural circuits, has been shown to follow an inverted U-shaped curve, coinciding with the two-stage neurodevelopmental process of initial synaptic overproduction with subsequent pruning. This trajectory allows postnatal experiences to refine the wiring, which may manifest as endophenotypic c...

The mammalian diving response, consisting of apnea, bradycardia, and increased total peripheral resistance, can be modified by conscious awareness, fear, and anticipation. We wondered whether swim and dive training in rats would 1) affect the magnitude of the cardiovascular responses during voluntary and forced diving, and 2) whether this training would reduce or eliminate any stress due to div...

History of underwater diving dates back to antiquity. Breath-hold technique in diving was known to the ancient nations. However, deep diving progressed only in the early decades of the 19th century as the result of advancements in efficient underwater technologies which subsequently led to invention of sophisticated sets of scuba diving in the 20th century. Currently, diving is performed for va...

This paper describes the pattern of diving accidents treated in a military hospital-based recompression chamber facility in Peninsular Malaysia. A retrospective study was carried out to utilize secondary data from the respective hospital medical records from 1st January 1996 to 31st December 2004. A total of 179 cases categorized as diving accidents received treatment with an average of 20 case...