Survivalist Pro
Survivalist Pro
Photo: cottonbro studio
two to three minutes Navy SEALs can hold their breath underwater for two to three minutes or more. Breath-holding drills are typically used to condition a swimmer or diver and to build confidence when going through high-surf conditions at night, said Brandon Webb, a former Navy SEAL and best-selling author of the book “Among Heroes.”
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Read More »Witnesses interviewed by investigators said they observed Marihugh and Lewis working out at the combat training pool on the afternoon of April 24. A group of 10 trainees were doing drills in the lap lanes. At the same time, the pair was doing push-ups and other calisthenics on the deck, and walking across the pool bottom pushing 10-pound diving bricks. The pool manager noticed a 30-pound, sand-filled duffel bag that Marihugh and Lewis brought with them and said he reminded the pair, “Don’t do any breath-holding, boys.” As the trainees were wrapping up an hour later, a couple of them stopped by the edge of the pool to direct Marihugh and Lewis where to return the diving bricks. The pair nodded in acknowledgment, as they were timing themselves to see how long they could hold their breaths, facing the clock on the pool deck. About 15 minutes later, three trainees returned to the deck to collect trash and noticed Marihugh and Lewis at the bottom of the pool. The men were not moving, and the 10-pound diving bricks were next to their torsos. Lewis was on his back with an arm bent toward his face, as if checking his watch. The trainees splashed the surface of the water and slapped the side of the pool. When the two men didn’t respond, the trainees pulled off shoes and clothes and dove in, pulling the unconscious men from the water. They performed CPR until paramedics arrived. Marihugh and Lewis were pronounced dead at local hospitals a short time later.
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Read More »“Breath-holding was negligent in this case but falls short of reckless disregard for foreseeable consequences because the two-man rule was in effect,” Losey wrote. “As such, their deaths were not due to misconduct.” Losey says the Navy’s task now is to improve safety guidance and raise awareness about the possibility that both swim buddies are at risk for shallow-water blackout when simultaneously breath-holding. Dr. Brad Uren, an emergency physician at the University of Michigan, said underwater blackouts typically occur after a swimmer hyperventilates — either voluntarily or due to exertion — which artificially lowers carbon-dioxide levels in the blood stream, delaying the body’s trigger to breathe. “If you breathe rapidly like that, you get rid of carbon dioxide, but you can’t carry any more oxygen than is already in the air,” Uren said. “Then you go underwater, and your body doesn’t hit that point where you have to get up to the surface to breathe.” After the swimmer loses consciousness, the body automatically takes a breath and can drown without immediate rescue. “When you talk to someone who’s survived hypoxic episode, they say they felt nothing, or even a euphoric feeling. The next thing they know, they woke up on the deck,” said Shawn P. DeRosa, director of aquatics and safety officer for campus recreation at Pennsylvania State University. “That’s why you need a safety lookout. When you’re both doing the activity, it’s not a safety lookout.” Mike Marihugh of Livonia said his son’s death was a freak accident that happened because SEAL training, by nature, is high risk. “These guys train to win wars, and they’re going to train to the limit. They’re a unique breed,” Marihugh said. “They died, both Navy SEALS, doing what they loved doing. And I’ve always felt good about that.”
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