Dear One and All




It is that time of month again, when it is my privilege and pleasure to invite you to our latest monthly, free, virtual, global, zoom talk on the broad theme of waterside hypotheses of human evolution.




This month, we are lucky to have the professor of Zoological Physiology, and diving physiology specialist, Erika Schagatay to talk to us about Man's place among the diving mammals.




More about her later in this email.




The talk is scheduled to start this Sunday, 12th June, at 8pm local (Western Australian) time - 2pm in Sweden (& Central Europe); 1pm in the UK; 8am in Montreal etc. Please help the pre-meeting panic by joining a few minutes before hand! We have a
waiting room set up but you should be admitted to the main 'room' quickly.




See map below for your local times but be wary of local time-saving plans.










The link to the meeting is pasted into the email at the end. Please feel free to share this with anyone who might be curious about why we are so different from our closest primate relatives, the chimpanzees, and particularly why we are so much more
accomplished at diving then they are. This link will also be posted on the home page of www.whattalks.com on the day.




The talk will, as usual, be recorded and please feel free to watch and share any of the previously recorded talks.




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Professor Erika Schagatay...











Professor Erika Schagatay is the director of the Environmental Physiology Group (EPG) studying human performance in extreme environments, with a special focus on freediving.




Erika obtained her B.Sc. in Biology at Lund University, studied Marine Biology at Gothenburg University, and completed her PhD in Animal Physiology at Lund University in 1996, on a thesis about the human diving response. After post-doctoral work in
sports physiology at August Krogh Institute in Copenhagen, Denmark, and medical sciences at the Department of Community Medicine in Malmö, Sweden, 1997-1998, she joined Mid Sweden University in 1999 as a lecturer. In 2000 she was appointed associate
professor at Lund University, and 2007 professor at Mid Sweden University. She headed the interdisciplinary Sports Science Profile at Mid Sweden University 2003-2008 and Sport Sciences 2015-2019, and currently holds the chair professorship in Sport
Sciences.




An active diver, her interest in physiology began when she met breath-hold divers performing far better than stated possible in the medical literature at the time. She found that good divers had a powerful diving response – and it did not make sense to
her how a terrestrial animal could have developed such an effective oxygen conserving system. By coincidence she came across Elaine Morgans book “The descent of Woman” and a possible explanation appeared.




Erika has since 1988 studied the physiology of several freediving populations, including the Indonesian Bajau and Japanese Ama, and found they can work efficiently for many hours a day underwater. Later studies have focused on competitive apnea divers,
to reveal what makes them able to breath-hold for over 10 minutes, swim 300 m underwater and reach 130 m depth on one breath, a feat that is impossible for other terrestrial mammals. She has found that in addition to the diving response, we share with
seals a spleen response - boosting the blood with red blood cells when we dive, among many other human features beneficial for apneic diving.



She has also studied high altitude physiology and revealed that human performance can be enhanced in this hypoxic environment by learning from breath-hold diving. Erika has published over 100 original articles on freediving physiology, high altitude-
and thermo-physiology. In addition to experimental laboratory work, Erika has led field expeditions to extreme environments in Indonesia, Japan, the Philippines, Egypt and the Nepali Himalayas. She has supervised ten graduate students and more than 100
Master students in their research projects. Erika has also worked with safety aspects of freediving in the Swedish Sports Diving Federation and the international diving organizations AIDA-international and CMAS, and lectured on her research on many
international conferences.





The Talk...




"Man's place among the diving mammals."



After an introduction on why and how humans breath-hold dive, the talk will be focused on human diving physiology, based mainly on Erika’s own research. It will cover the physiological prerequisites for freediving: How the function of the diving
response, spleen response, lung functions, specific breathing and equalization methods, and many other features of human physiology make us excellent freedivers. It will show how well these physiological functions respond to training, placing human
diving ability within the range of several species of semiaquatic mammals.






I hope to see you on Sunday




All the best




Algis




----










Algis Kuliukas is inviting you to a scheduled Zoom meeting.



Topic: WHAT Talk #08 Erika Schagatay

Time: Jun 12, 2022 08:00 PM Perth




Join Zoom Meeting

https://us06web.zoom.us/j/83631511422?pwd=OTc1OEgwbndvNy9mek1uUDNIeEtQUT09




Meeting ID: 836 3151 1422

Passcode: 585933

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