#155 | Erika Schagatay | Science Deep Dive

The Freedive Cafe Podcast

Erika Schagatay PhD is a scientist based in Sweden and Dahab who focuses on researching freediving and apnea.
She first appeared on Episode #42 of the podcast.
In this episode we discuss:
Shout out to Nathan McClatchey for saving this interview, and Chou and Mireia in Barcelona!
Erika’s ‘Divelab’ in Dahab.
What is the apnea RAMP test?
Genetics vs Training.
Continued and upcoming research to take place.
Lactate threshold, and diving mammals.
Do aerobic training benefits also feed into apnea ability?
On Frank Pernett’s thesis on..
New theories on the dangers of hyperventilation in serial/repeated, shallow diving.
A question from Patreon supporter Tom Way about the perfect amount o2 and Co2 to have in the blood.
It’s easier to hyperventilate than you think.
Detecting hyperventilation with a chest strap.
Deep diving with accurate pulse oximetry.
Lung atelectasis and pulmonary oedema.
Is there a genetic component to strong desaturation and oedema?
Different lungs may have different sensitivities.
Deeper dives may not mean stronger dive response.
Can arrhythmia cause black out?
Blood pressure and freediving.
The spleen effect is not part of the diving response.
The strength of the dive response is not affected by hyperventilation.
Clarifying the blood shift.
What is myoglobin and can we use it? Increase it?
How does caffeine affect the diving response?
The effects of alcohol on freediving.
Can you train for high altitude with apnea training?
What role does CO2 play in high altitude adaptation?
A question from Tom about an educational pathway into Erika’s area of research.

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