When shore diving, divers often have to overcome an obstacle course to get to their favorite dive spot. Beach access may be by stairs and always includes walking across grass, concrete, sand or rocks. Entries and exits are in varying surf conditions and divers regularly “kick out” or “turtle” for extended distances on the surface to conserve air before dropping down to dive.
Healthy shoulders are vital to a positive scuba diving experience.
The mobility of the shoulder joint exceeds every other joint in the human body. It enables divers to reach behind, under, around, above and beyond in nearly unlimited directions and rotation. Consequently, by design the shoulder joint and its musculature are highly susceptible to injury all of the time and especially during scuba diving activities.
Fitness for diving is not one-size-fits-all. Just as important as the proper fit for a wetsuit, BC, fins and mask, it is essential for divers to find the best combination of exercise for good health, diving performance and other personal fitness goals.
Tick tock tick tock. Have you ever heard someone say, “There goes 15 minutes of my life I will never get back?” While there are many different philosophies and applications of time, most divers don’t want to waste it. Instead, divers carefully invest some of their precious time, energy and money planning and preparing for their ideal SCUBA experience.
Scientific diving appears to be one of the safer forms of diving, a recent study of incidences of decompression illness over ten years has found. This safety seems to be facilitated by a combination of relatively high levels of training and oversight, the predominance of shallow, no-decompression diving and, possibly, low peer or institutional pressure to complete dives under less than optimal circumstances.
What is the hypoxia? It is a deficit of oxygen in the lungs, blood and tissues. Each of us feels hypoxia from time to time, even if we do not realize it.”
Long after the jet lag and the first day back to work, you slip into your favorite dive T-shirt eager to keep the essence of your most recent underwater experience pulsing through your mind and body. Proudly wearing large print logos across your chest is a way of celebrating your passion for diving and sharing it with the rest of the world.
A research team at the Duke University Hyperbaric Centre, (North Carolina, USA) has won a Johnson Space Center (JSC) Group Achievement Award from NASA. The Durham-based team comprising Dr Neal W Pollock, Dr Richard Vann, Mike Natoli and Dr Richard Moon developed an in-suit light exercise pre-breathe regimen to prevent decompression sickness from developing in astronauts.
Chronological age and physiological age can differ markedly, and each individual ticks to his own genetic clock.
Text: Scuba Doc
An article in ‘Alert Diver’ has brought some debate about the side bar containing information about not diving while using marijuana and is based on the following information and references:
To my knowledge, there are no studies on the use of marijuana and diving.
