Living dolphins 3d3/14/2023 ![]() ![]() "In human biomechanics, there is a huge literature on the falling injury, especially in the elderly, and the sports injury, like concussions, but I don't know of any other work on diving injuries," Jung said. They then plotted the height and impact with the force human muscles, ligaments and bones can withstand and found the probability of different injuries - to the collarbone, spine and knee - at different heights and at different diving positions. They plunged the objects into water and measured the forces acting on them and how they were distributed over time and were able to develop a theoretical model describing the increase in force on the various shapes, and how those forces increased with the height of the dive. The researchers used 3D-printed models of a near-life-sized human head and torso, torso and head with arms outstretched, and feet, as well as models of a harbor porpoise head, a Northern gannet beak, and a basilisk lizard foot to examine the impact of curved, pointy, and flat shapes, respectively, on the water's surface. ![]() We also wanted to come up with a more universal or general theory of how objects or different shape fronts dive into water, so we looked at the diving fronts of both humans in different postures and animals and measured the forces of impact of the different shapes."Īnupam Pandey, a postdoctoral researcher in Jung's lab, is the paper's first author. "Humans can choose how they dive, so we wanted to look at the effect of the position of diving. "Water is 1,000 times denser than air, so you are moving from a very dilute medium to a very dense medium, and you're going to experience a huge impact," said Sunghwan Jung, professor of biological and environmental engineering in the College of Agriculture and Life Sciences and senior author of the paper. The study, "Slamming Dynamics of Diving and its Implications for Diving-Related Injuries" published July 27 in Science Advances. You can also become a virtual dolphin swimming through the water and observing underwater life from an underwater perspective.For untrained divers, the researchers found that spinal cord and neck injury is likely above eight meters in a head-first dive collarbone injury is likely above 12 meters in a hand-first dive and knee injury is likely above 15 meters with feet-first diving.
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