DCS is unpredictable. In general, anything that increases blood flow to an organ will increase the rate of N2 loading. Anything that interferes with blood flow from an organ will reduce the capacity to off-load N2. These alterations may explain the possible predisposing factors that increase the likelihood of DCS.
Decompression Sickness (DCS) is an illness caused by the effects of gas coming out of solution to form bubbles in the body after diving. It is due to the effect of Henry’s Law following diving exposures. Understanding decompression theories is difficult if not impossible, so the average diver may well bypass most of this blog post, if he is not technically inclined.
A basic understanding of the bodies’ processes is needed to grasp the physiological effects of diving and the application of diving medicine. The cardiovascular and respiratory systems are described here while the physiology of some other organs, such as the ear, are considered in later blog posts.
Scuba Divers must educate themselves and be concerned when planning which Breathing Gasses they will use while Scuba Diving. Here we have a general description of the typical gasses that affect divers.
One of the biggest mistakes many instructors make during classes is to not demand a mastery of buoyancy control. Many new students learn to dive and develop skills in a pool setting, over-weighted, and sitting on their knees for the majority of skill development. Take these examples below…. do they represent a natural or desirable diving position? NO..!!!
Share
Gas Laws and Scuba Diving
Gases behave in nature and in scuba diving according to several gas laws. Knowledge of these scuba diving gas laws is important to the diver because they influence the duration of the air supply and affect the gas containing spaces in the body such as the ears, sinuses and lungs. They [...]
Share
Some of the major physical hazards are related to the effects of pressure. Pressure is defined as force per unit area. i.e.
PRESSURE = FORCE
AREA
If a force is spread over twice the area, the pressure is halved. This explains why, for example, wide tires are preferable for driving on beaches. The weight of the vehicle (force) [...]