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Posts with the category “dive-fitness”

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Lessons Learned While Lost at Sea
August 3rd, 2021
Understand the risks and that there are bad dive shops. I chose this shop because I found them on a dive association’s website as a highly rated dive center. The criteria that I had used to select a s...  Read More
by DAN Team
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Symbiosis on the Sand
August 2nd, 2021
The close living arrangement between weak-eyed alpheid snapping shrimp and sharp-eyed partner gobies is a classic example of symbiosis in the sea. Goby-associated snapping shrimp are master sand dwell...  Read More
by DAN Team
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Exercising After a Break
July 29th, 2021
There is no perfect time for a workout, and you have to balance all your daily requirements, but people who plan for and prioritize exercise are more successful in the long run. Plan for your workout ...  Read More
by DAN Team
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Outer- and Inner Ear Infections
July 29th, 2021
Trauma to the external canal disrupts the protective epithelium that, along with earwax, prevents infection....  Read More
by DAN Team
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Return to Freeding after Cancer Treatment
July 29th, 2021
Shallow water, however, does not always mean it’s safe. Your lungs must tolerate rapid changes of volume with the pressure at shallower depths, and the greatest changes occur in the first 33 feet (10 ...  Read More
by DAN Team
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The Case of Catastrophic Kelp Loss
July 29th, 2021
Lessons learned from restoration efforts in the United States could help with kelp loss happening in Australia, Norway, Chile and elsewhere around the world. Divers can help by volunteering with proje...  Read More
by DAN Team
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How Old Is Too Old
May 20th, 2021
By Francois Burman, Pr. Eng, MSc., and Peter Buzzacott, Ph.D., MPH Everyone loves the smell of a new car, but eventually the car develops problems, and you realize current models have new safety featu...  Read More
by DAN Team
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The Deepest Scuba Dive - Part 1
May 6th, 2021
In this, the first article from Karen van den Oever, she tells us about the preparations, logistics and lead-up to her World Record attempt for the Deepest Scuba Dive by a woman at BoesmansGat in the ...  Read More
by DAN Team
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Over-the-Counter Medications
April 22nd, 2021
By definition, over-the-counter (OTC) medications are the classification of drugs considered safe for consumer use based solely on their labeling. When used as directed, they present a minimum risk an...  Read More
by DAN Team
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High-Pressure Ophthalmology
April 22nd, 2021
Our eyes normally exist in a world where the pressure around them is the result of the combined weight of all of the gases in the earth’s atmosphere. Diving exposes the eyes to increased pressure. Whi...  Read More
by DAN Team
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Member to Member: Guidelines for Seniors
April 22nd, 2021
As divers get older, DAN® recommends getting annual physicals, staying active and fit, diving within physical limits and avoiding difficult or dangerous diving conditions.There is little concrete advi...  Read More
by DAN Team
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Seasickness Prevention and Treatment
April 22nd, 2021
Some of the world’s best dive sites are accessible only by boat, and unfortunately seasickness prevents some scuba divers from visiting their dream destinations. Unmanaged seasickness will make any bo...  Read More
by DAN Team
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Juggling Physical Exercise and Diving
April 16th, 2021
If you want to dive, you need to be ready. Readiness entails medical, psychological and physical fitness, appropriate knowledge and adequate physical skills. If you exercise regularly at an intensity ...  Read More
by DAN Team
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Risk Factors For Heart Disease
April 16th, 2021
Heart health is essential to the safety of all divers, symptoms of heart conditions are often subtle or easily missed. In some cases, the first indication of a serious cardiac problem may be a heart a...  Read More
by DAN Team
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Health Concerns for Divers Over 50
April 16th, 2021
Getting older doesn’t have to mean give up on diving, but divers over 50 should be aware of common medical issues that may interfere with safe diving. Heart disease, respiratory disease and musculoske...  Read More
by DAN Team
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When to Consult a Health-Care Provider Before Engaging in Physical Activities
April 16th, 2021
Date: 15 December 2013 | Author Petar Denoble MD, DSc. Physical activity (PA) is beneficial for health, but the transition from a sedentary lifestyle to PA or a change in the level of habitual PA may ...  Read More
by DAN Team
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Diving After Bariatric Surgery
April 16th, 2021
I’m an instructor, and I have a student who completed his pool sessions, but he had gastric bypass surgery before he could do his open-water dives. Before I allow him to continue with his training, I’...  Read More
by DAN Team
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Fitness for Diving
April 16th, 2021
There are moments when scuba diving feels effortless: drifting over a shallow reef or descending through clear water toward a sandy bottom. But diving can also be strenuous — when swimming against a c...  Read More
by DAN Team
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Motion Sickness
April 15th, 2021
Motion sickness, or seasickness, ruins diving trips, vacations and travel for many. Everyone is susceptible; it can happen to anyone if the circumstances are right. A lot is known about motion sicknes...  Read More
by DAN Team
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Swimmer’s Ear (Otitis Externa)
April 15th, 2021
Swimmer’s ear (otitis externa) is a condition caused by inflammation or infection of the outer ear canal. In a diving environment, this is usually caused when prolonged exposure to wet conditions chan...  Read More
by DAN Team
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Diving after COVID-19: What We Know Today
April 15th, 2021
COVID-19 symptoms range from mild to severe. Some people have no symptoms at all while others require complicated stays in ICUs with ventilatory support to recover. In addition to the impact of the pr...  Read More
by DAN Team
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Scuba Diving and Diabetes
April 15th, 2021
For many years the medical community discouraged people with diabetes from scuba diving. A Divers Alert Network® (DAN®) survey in 1996, however, revealed that nearly 200 of its members were divers wit...  Read More
by DAN Team
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Your Lungs and Diving
April 15th, 2021
Date: 1 May 2017 | Author:By Jack Meintjes, MBChB, DOM, FCPHM(SA) Occ Med, MMed Diving imposes significant challenges to the respiratory system. Lung conditions are among the most common reasons peopl...  Read More
by DAN Team
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Wisdom Tooth Extraction and Diving
April 15th, 2021
Wisdom teeth are permanent molars that usually emerge during the late teens or early twenties. It’s not uncommon for these teeth to be associated with pain or complications. Dentists often recommend h...  Read More
by DAN Team
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Flying After Diving
April 15th, 2021
When flying after diving, the ascent to altitude increases the risk of decompression sickness (DCS) because of the additional reduction in atmospheric pressure. The higher the altitude, the greater th...  Read More
by DAN Team
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Unexpected Weight Loss
April 15th, 2021
A dropped weight belt caused a runaway ascentReported StoryTowards the end of the dive, at about 6 m (20 ft) depth, my weight belt fell off (the buckle came loose from the strap). I exhaled and dumped...  Read More
by DAN Team
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Unintended Rapid Ascent Due to Uncontrolled Inflation
April 15th, 2021
A runaway ascent ends the diving on a liveaboard holidayReported StoryDiving from a liveaboard near a remote island in South America, I was hanging out on a coral ledge at 93 fsw (28 msw) watching Ham...  Read More
by DAN Team
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How to Avoid Rapid Ascents and Arterial Gas Embolism
April 15th, 2021
Decompression illness (DCI) is a term used to describe two conditions: decompression sickness (DCS) and arterial gas embolism (AGE). AGE is one of the most serious medical emergencies a diver may expe...  Read More
by DAN Team
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Top 5 Factors That Increase Your Risk of the Bends
April 15th, 2021
The Bends, also known as decompression sickness (DCS) occurs when nitrogen bubbles form in the blood, often causing severe joint pain. The common name “The Bends” comes from an affected person doublin...  Read More
by DAN Team
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Treating Decompression Sickness (The Bends)
April 15th, 2021
Decompression sickness (DCS) is one of the most common problems reported to Divers Alert Network® (DAN®). Although scuba diving accidents are rare, it’s important to know how to handle suspected cases...  Read More
by DAN Team
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On-Site Neurological Examination
April 15th, 2021
Information regarding an injured diver’s neurological status will be useful to medical personnel not only for deciding the initial course of treatment but also in the effectiveness of treatment. Exami...  Read More
by DAN Team
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Decompression Illness
April 15th, 2021
Author: Ed Thalmann, M.D. Decompression illness, or DCI, is associated with a reduction in the ambient pressure surrounding the body. DCI encompasses two diseases, decompression sickness (DCS) and art...  Read More
by DAN Team
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Alternobaric Vertigo
April 15th, 2021
Alternobaric vertigo occurs during descent, ascent or immediately after surfacing from a dive and is caused by unequal pressure stimulation in each ear.Mechanisms of InjuryDuring an ascent, the air in...  Read More
by DAN Team
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Middle-Ear Equalisation
April 15th, 2021
Middle-ear equalisation is a basic, essential diver skill that equalises the pressure in the sinuses and middle-ear spaces with the ambient pressure. To be a safe diver and avoid middle-ear injuries, ...  Read More
by DAN Team
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Inner-Ear Barotrauma (IEBT)
April 15th, 2021
Inner-ear barotrauma is damage to the inner ear due to pressure differences, usually caused by incomplete or forceful equalisation. A leak of inner-ear fluid (perilymph fistula) may or may not occur. ...  Read More
by DAN Team
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Sinus Barotrauma
April 15th, 2021
Sinus barotraumas are among the most common diving injuries. When the paranasal sinuses fail to equalise to barometric changes during vertical travel, damage to the sinus can cause sharp facial pain w...  Read More
by DAN Team
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Mask Squeeze (Facial Barotrauma)
April 15th, 2021
OverviewMask squeeze (mask barotrauma or facial barotrauma) results from a failure to equalise the air space created between your mask and face. In most cases this is a relatively benign injury. It te...  Read More
by DAN Team
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O’Neill Grading System
April 15th, 2021
The O’Neill grading system is a way to categorise the severity of middle-ear barotrauma (MEBT). It is simple and is intended to provide consistency in diagnosis with sufficient details to direct treat...  Read More
by DAN Team
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Middle-Ear Barotrauma (MEBT)
April 15th, 2021
Middle-ear barotrauma (ear squeeze) is the most common dive injury. It occurs when pressure in the air space of the middle ear is not equalised to the ambient pressure. It can cause a ruptured eardrum...  Read More
by DAN Team
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Headaches and Diving
April 15th, 2021
Many divers have experienced a headache after a dive with it eventually clearing and no lasting side effects. But when headaches are a recurring issue for divers, that’s when it becomes concerning. To...  Read More
by DAN Team

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 2021
 April
Aqua Pool Noodle ExercisesUnderwater Photographer and DAN Member Madelein Wolfaardt10 Simple Things You Can Do to Improve Your Underwater PhotographyCOVID-19 and Diving: March 2021 UpdateDiver Return After COVID-19 Infection (DRACO): A Longitudinal AssessmentGuidelines for Lifelong Medical Fitness to DiveExperienceFitness Myth or Fitness Fact?The Safety of Sports for Athletes With Implantable Cardioverter-DefibrillatorsCardiovascular Fitness and DivingHypertensionPatent Foramen Ovale (PFO)Headaches and DivingMiddle-Ear Barotrauma (MEBT)O’Neill Grading SystemMask Squeeze (Facial Barotrauma)Sinus BarotraumaInner-Ear Barotrauma (IEBT)Middle-Ear EqualisationAlternobaric VertigoDecompression IllnessOn-Site Neurological ExaminationTreating Decompression Sickness (The Bends)Top 5 Factors That Increase Your Risk of the BendsHow to Avoid Rapid Ascents and Arterial Gas EmbolismUnintended Rapid Ascent Due to Uncontrolled InflationUnexpected Weight LossFlying After DivingWisdom Tooth Extraction and DivingYour Lungs and DivingScuba Diving and DiabetesDiving after COVID-19: What We Know TodaySwimmer’s Ear (Otitis Externa)Motion SicknessFitness for DivingDiving After Bariatric SurgeryWhen to Consult a Health-Care Provider Before Engaging in Physical ActivitiesFinding Your FitnessHealth Concerns for Divers Over 50Risk Factors For Heart DiseaseJuggling Physical Exercise and DivingSeasickness Prevention and TreatmentMember to Member: Guidelines for SeniorsHigh-Pressure OphthalmologyOver-the-Counter Medications
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