Chapter 9 training management Figure 9.16: NSW rugby star Trent Barrett undergoing treatment in a multi-person hyperbaric chamber. Single-person chambers are also available. chamber (figure 9.16). The underlying theory behind this practice is rather simple. The athlete breathes in pure oxygen and this significantly increases the oxygen concentration levels of arterial blood. The increase in blo...

OBJECTIVE To determine if bradycardia during hyperbaric exposure is accompanied by a negative influence on myocardial contractility. METHODS Accelerometer-based registration of myocardial compression waves with Seismocardiography (SCG) for noninvasive contractility monitoring. Comparative pulmonary artery (PA) catheter study (9 ICU-patients, mean = 67ys) with ejection-fraction (EF) equivalent...

Hyperbaric oxygen (HBO(2)) stimulates presumptive central CO2-chemoreceptor neurons, increases minute ventilation (V(min)), decreases heart rate (HR) and, if breathed sufficiently long, produces central nervous system oxygen toxicity (CNS-OT; i.e., seizures). The risk of seizures when breathing HBO(2) is variable between individuals and its onset is difficult to predict. We have tested the hypo...

Until further information is available we recommend that portable hyperbaric chambers must be used only to facilitate but not to delay descent when illness occurs at high altitude. We thank the Sezione Varallo of the Italian Alpine Club for providing the locations in the Capanna Margherita, and the Swiss Army for transporting some of the equipment. Methods of gas-balance control to be used with...

PURPOSE To investigate de adjunctive effect of Hyperbaric Oxygen Therapy in a group of patients with refractory Crohn's disease. METHODS A total of 29 subjects with refractory Crohn's disease were submitted to daily sessions of Hyperbaric Oxygen Therapy, in a 2800 Sechrist Monoplace Hyperbaric Chamber (Sechrist, USA) pressurized to 2.4 ATA. Each session lasted 2 hours. The endpoint was closur...

The physiological reactions of the body in scuba diving situation can be simulated in a pressure chamber by increasing the ambient pressure. In this study the influence of a hyperbaric environment of 6 bar on the changes of the subcutaneous adipose tissue (SAT) thicknesses on different body sites in 68 voluntary men with undersea diving experience was investigated. Measurements of SAT-topograph...

in this issue1 underlines the necessity of instituting hyperbaric oxygen treatment for suspected iatrogenic arterial gas embolism even if a delay of days has occurred. The commonest reasons for delay are a failure to consider the diagnosis and treatment; concern related to the critical status of the patient; and a mistaken belief that the patient is not fit for transportation or treatment in a ...

There is a continual search for new methods of marine salvage and decommissioning of structures in the open sea in order to improve control and lower operational costs. The concept design of a lightweight, cryogenic, marine, heavy lift, buoyancy system has been investigated. The objective is to be able to raise or lower high mass objects controlled solely from a surface support vessel. The over...