Erika Schagatay

Publications

Articles in journals
Articles, reviews/surveys
Chapters in books
Conference papers
Doctoral theses, comprehensive summaries
Manuscripts

Articles in journals

Mulder, E. R. , Bouten, J. , Holmström, P. K. & Schagatay, E. K. (2025). Progressive changes of oxygenation, diving response, and involuntary breathing movements during repeated apneas. Respiratory Physiology & Neurobiology, vol. 336    

Pernett, F. , Schagatay, E. & Holmström, P. (2025). Sex-based variations in breath-holding : oxygen storage and diving response among non-divers. Frontiers in Physiology, vol. 15    

Pernett, F. , Mulder, E. , Johansson, F. , Sieber, A. , Bermudez, R. , Lossner, M. & Schagatay, E. (2025). Toward a hyperventilation detection system in freediving : a proof of concept using force sensor technology. Frontiers in Physiology, vol. 15    

Holmström, P. K. , Harman, T. S. , Kalker, A. , Steiner, B. , Hawkins, E. , Jorgensen, K. C. , Zhu, K. T. , Kunwar, A. J. & et al. (2024). Differential splenic responses to hyperoxic breathing at high altitude in Sherpa and lowlanders. Experimental Physiology, vol. 109: 4, pp. 535-548.  

Lindblom, H. , Pernett, F. , Schagatay, E. & Holmström, P. (2024). Effect of exercise intensity and apnea on splenic contraction and hemoglobin increase in well-trained cross-country skiers. European Journal of Applied Physiology, vol. 124: 7, pp. 2057-2067.    

Rixen, M. , Weickmann, J. , Gebauer, R. A. , Weidenbach, M. , Markel, F. , Michaelis, A. , Dähnert, I. , Wüstenfeld, J. & et al. (2024). First Real-Life Data on the Diving Response in Healthy Children. Pediatric Cardiology, vol. 45: 2, pp. 314-322.  

Mulder, E. , Längle, L. , Pernett, F. , Bouten, J. , Sieber, A. & Schagatay, E. (2023). Case Studies in Physiology : Is blackout in breath-hold diving related to cardiac arrhythmias?. Journal of applied physiology, vol. 134: 4, pp. 951-956.  

Pernett, F. , Bergenhed, P. , Holmström, P. , Mulder, E. & Schagatay, E. (2023). Effects of hyperventilation on oxygenation, apnea breaking points, diving response, and spleen contraction during serial static apneas. European Journal of Applied Physiology, vol. 123: 8, pp. 1809-1824.  

Mulder, E. , Pernett, F. & Schagatay, E. (2023). Reply to Lemaître and Costalat. Journal of applied physiology, vol. 135: 4, pp. 728-729.  

Mulder, E. , Sieber, A. , McKnight, C. & Schagatay, E. (2023). Underwater pulse oximetry reveals increased rate of arterial oxygen desaturation across repeated freedives to 11 metres of freshwater. Diving and Hyperbaric Medicine, vol. 53: 1, pp. 16-23.  

Mulder, E. , Staunton, C. A. , Sieber, A. & Schagatay, E. (2023). Unlocking the depths : multiple factors contribute to risk for hypoxic blackout during deep freediving. European Journal of Applied Physiology, vol. 123: 11, pp. 2483-2493.  

Mulder, E. , Holmström, P. & Schagatay, E. (2022). Effects of dynamic apnea training on diving bradycardia and short distance swimming performance. Journal of Sports Medicine and Physical Fitness, vol. 62: 8, pp. 1037-1044.  

Blakeson, M. C. , Jerome, S. P. , Walsh, N. P. , Schagatay, E. & Hanstock, H. G. (2022). Illness Incidence, Psychological Characteristics, and Sleep in Dogsled Drivers During the Iditarod Trail Sled Dog Race. Wilderness & environmental medicine (Print), vol. 33: 1, pp. 92-96.  

Holmström, P. , Pernett, F. & Schagatay, E. (2022). Test–retest reliability of splenic volume assessment by ultrasonography. Scientific Reports, vol. 12: 1  

Mulder, E. , Pernett, F. & Schagatay, E. (2021). A more holistic view could contribute to our understanding of ‘silent hypoxaemia’ in Covid -19 patients. Journal of Physiology, vol. 599: 14, pp. 3627-3628.  

Patrician, A. , Pernett, F. , Lodin-Sundström, A. & Schagatay, E. (2021). Association Between Arterial Oxygen Saturation and Lung Ultrasound B-Lines After Competitive Deep Breath-Hold Diving. Frontiers in Physiology, vol. 12    

Holmström, P. K. , Karlsson, Ø. , Lindblom, H. , McGawley, K. & Schagatay, E. K. (2021). Enhanced splenic volume and contraction in elite endurance athletes. Journal of applied physiology, vol. 131: 2, pp. 474-486.  

Mulder, E. , Schagatay, E. & Sieber, A. (2021). First Evaluation of a Newly Constructed Underwater Pulse Oximeter for Use in Breath-Holding Activities. Frontiers in Physiology, vol. 12    

Engan, H. K. , Patrician, A. & Schagatay, E. (2021). Letter to the Editor : On the increased haemoglobin concentration and improved oxygen uptake after Spirulina supplementation. European Journal of Applied Physiology, vol. 121: 5, pp. 1513-1514.  

Mulder, E. , Dujic, Z. , Schagatay, E. & Sieber, A. (2021). New scientific methods in breath-hold diving research. Freiberg Online Geoscience (FOG), vol. 58, pp. 115-125.  

Schagatay, E. & Holmström, P. (2021). Response to letter to Editor by Gatterer and Burtscher concerning splenic contraction in different situations. European Journal of Applied Physiology, vol. 121: 8, pp. 2371-2372.    

Pernett, F. , Schagatay, F. , Vildevi, C. & Schagatay, E. (2021). Spleen Contraction During Sudden Eupneic Hypoxia Elevates Hemoglobin Concentration. Frontiers in Physiology, vol. 12    

Lodin-Sundström, A. , Holmström, P. , Ekstam, M. , Söderberg, D. & Schagatay, E. (2021). Splenic contraction is enhanced by exercise at simulated high altitude. European Journal of Applied Physiology, vol. 121: 6, pp. 1725-1732.    

Holmström, P. , Bird, J. D. , Thrall, S. F. , Kalker, A. , Herrington, B. A. , Soriano, J. E. , Mann, L. M. , Rampuri, Z. H. & et al. (2021). The effects of high altitude ascent on splenic contraction and the diving response during voluntary apnea. Experimental Physiology, vol. 106: 1, pp. 160-174.  

Mulder, E. , Sieber, A. & Schagatay, E. (2021). Using Underwater Pulse Oximetry in Freediving to Extreme Depths to Study Risk of Hypoxic Blackout and Diving Response Phases. Frontiers in Physiology, vol. 12    

McKnight, J. C. , Mulder, E. , Ruesch, A. , Kainerstorfer, J. M. , Wu, J. , Hakimi, N. , Balfour, S. , Bronkhorst, M. & et al. (2021). When the human brain goes diving : using near-infrared spectroscopy to measure cerebral and systemic cardiovascular responses to deep, breath-hold diving in elite freedivers. Philosophical Transactions of the Royal Society of London. Biological Sciences, vol. 376: 1831  

Engan, H. , Patrician, A. , Lodin-Sundström, A. , Johansson, H. , Melin, M. & Schagatay, E. (2020). Spleen contraction and Hb elevation after dietary nitrate intake. Journal of applied physiology, vol. 129: 6, pp. 1324-1329.    

Schagatay, E. , Lunde, A. , Nilsson, S. , Palm, O. & Lodin-Sundström, A. (2020). Spleen contraction elevates hemoglobin concentration at high altitude during rest and exercise. European Journal of Applied Physiology, vol. 120, pp. 2693-2704.    

Holmström, P. , Mulder, E. , Starfelt, V. , Lodin-Sundström, A. & Schagatay, E. (2020). Spleen Size and Function in Sherpa Living High, Sherpa Living Low and Nepalese Lowlanders. Frontiers in Physiology, vol. 11    

Schagatay, E. , Holmström, P. , Mulder, E. , Limbu, P. , Schagatay, F. S. , Engan, H. & Lodin-Sundström, A. (2020). Spleen Volume and Contraction During Apnea in Mt. Everest Climbers and Everest Base Camp Trekkers. High Altitude Medicine & Biology, vol. 21: 1, pp. 84-91.  

Fernández, F. d. A. , Rodríguez-Zamora, L. & Schagatay, E. (2019). Hook Breathing Facilitates SaO2 Recovery After Deep Dives in Freedivers With Slow Recovery. Frontiers in Physiology, vol. 10, pp. 1-8.    

Schagatay, E. & Åman, P. A. (2019). Repeated freediving – An efficient and safe method to rescue subjects trapped in cars underwater. Safety Science, vol. 118, pp. 752-756.    

Holmström, P. , Mulder, E. , Lodin-Sundström, A. , Limbu, P. & Schagatay, E. (2019). The Magnitude of Diving Bradycardia During Apnea at Low-Altitude Reveals Tolerance to High Altitude Hypoxia. Frontiers in Physiology, vol. 10, pp. 1-12.    

Rodríguez-Zamora, L. , Engan, H. K. , Lodin-Sundström, A. , Schagatay, F. , Iglesias, X. , Rodriguez, F. A. & Schagatay, E. (2018). Blood lactate accumulation during competitive freediving and synchronized swimming. Undersea & Hyperbaric Medicine, vol. 45: 1, pp. 55-63.

Patrician, A. , Engan, H. K. , Lundsten, D. , Grote, L. , Vigetun-Haughey, H. & Schagatay, E. (2018). The Effect of Dietary Nitrate on Nocturnal Sleep-Disordered Breathing and Arterial Oxygen Desaturation at High Altitude. High Altitude Medicine & Biology, vol. 19: 1, pp. 21-27.  

Patrician, A. & Schagatay, E. (2017). Dietary nitrate enhances arterial oxygen saturation after dynamic apnea. Scandinavian Journal of Medicine and Science in Sports, vol. 27: 6, pp. 622-626.    

Schagatay, E. , Johansson, O. & Abrahamsson, E. (2017). Diving Response and Lung Capacity of Philippine Sama-Bajau Professional Breath-Hold Divers. Acta Physiologica, vol. 219: S710

Schagatay, E. , Patrician, A. , Engan, H. & Lodin-Sundström, A. (2017). Spleen Contraction and Hb Increase after Nitrate Ingestion may Explain Enhanced Apneic Diving Performance. Acta Physiologica, vol. 219: S710, pp. 32-32.

Bakker, E. , Engan, H. , Patrician, A. , Schagatay, E. , Karlsen, T. , Wisloff, U. & Gaustad, S. E. (2015). Acute dietary nitrate supplementation improves arterial endothelial function at high altitude : A double-blinded randomized controlled cross over study. Nitric oxide, vol. 50, pp. 58-64.    

Schagatay, E. , Hubinette, A. , Lodin-Sundström, A. , Engan, H. K. & Stenfors, N. (2015). Exercise induce hemoconcentration following spleen contraction in subjects with COPD. COPD Research and practice, vol. 1, pp. 1-7.    

Engan, H. & Schagatay, E. (2015). "Spleen Contraction and Hemoconcentration" Regarding the Review "Hemoconcentration and Hemostasis During Acute Stress : Interacting and Independent Effects" by Austin et al. 2011. Annals of Behavioral Medicine, vol. 49: 4, pp. 634-635.    

Vigetun-Haughey, H. , Appelberg, J. , Forsberg, T. , Kaldensjö, M. & Schagatay, E. (2015). Voluntary apnea evokes diving responses in obstructive sleep apnea patients. European Journal of Applied Physiology, vol. 115: 5, pp. 1029-1036.    

Abrahamsson, E. & Schagatay, E. (2014). A living based on breath-hold diving in the Bajau Laut. Human Evolution, vol. 29: 1-3, pp. 171-183.  

Bakker, E. , Engan, H. , Patrician, A. , Schagatay, E. , Karlsen, T. , Wisloff, U. & Gaustad, S. E. (2014). Effects Of Dietary Nitrate Supplementation On Endothelial Function At High Altitude. Medicine & Science in Sports & Exercise, vol. 46: 5, pp. 424-424.

Schagatay, E. & Lodin-Sundström, A. (2014). Fasting improves static apnea performance in elite divers without enhanced risk of syncope. European Journal of Sport Science, vol. 14: Suppl 1, pp. S157-S164.  

Schagatay, E. (2014). Human breath-hold diving ability and the underlying physiology. Human Evolution, vol. 29: 1-3, pp. 125-140.  

Fahlman, A. & Schagatay, E. (2014). Man's place among the diving mammals. Human Evolution, vol. 29: 1-3, pp. 47-66.  

Johansson, O. & Schagatay, E. (2014). Sara Campbell, World Champion in Deep Diving After 9 Months of Training – How Is This Possible?. Human Evolution, vol. 29: 1-3, pp. 67-73.  

Engan, H. K. , Lodin-Sundström, A. , Schagatay, F. & Schagatay, E. (2014). The effect of climbing mount everest on spleen contraction and increase in hemoglobin concentration during breath holding and exercise. High Altitude Medicine & Biology, vol. 15: 1, pp. 52-57.  

Engan, H. , Schagatay, E. , Lodin-Sundström, A. , Richardson, M. & Beekvelt, M. (2013). Effects of two weeks of daily apnea training on diving response, spleen contraction, and erythropoiesis in novel subjects.. Scandinavian Journal of Medicine and Science in Sports, vol. 23: 3, pp. 340-348.  

Engan, H. K. , Jones, A. M. , Ehrenberg, F. & Schagatay, E. (2012). Acute dietary nitrate supplementation improves dry static apnea performance. Respiratory Physiology & Neurobiology, vol. 182: 2-3, pp. 53-59.  

Schagatay, E. (2012). Andningstekniker inom avancerad fridykning : Vad är 'yogaandning', 'lungpackning' och 'hook breathing', och när används de?. Sportdykaren, vol. 2

Richardson, M. , Engan, H. , Lodin-Sundström, A. & Schagatay, E. (2012). Effect of hypercapnia on spleen-related haemoglobin increase during apnea. Diving and Hyperbaric Medicine, vol. 42: 1, pp. 4-9.

Johansson, O. & Schagatay, E. (2012). Lung-packing and stretching increases vital capacity in recreational freedivers. The European respiratory journal. Supplement, vol. 40: Supplement 56, pp. 149s

Schagatay, E. (2012). Reply : Safety will increase with knowledge. Diving and hyperbaric medicine, vol. 42: 2, pp. 106-108.

Schagatay, E. , Richardson, M. X. & Lodin-Sundström, A. (2012). Size matters : Spleen and lung volumes predict performance in human apneic divers. Frontiers in Physiology, vol. 3: JUN, pp. Art. no. 173    

Schagatay, E. (2012). Vad är "Blow – tap – talk" : hur gör man och vad används det till?. Sportdykaren, : 1

Schagatay, E. (2012). Ytprotokoll efter tävlingsdyk visar att dykaren har full koll!. Sportdykaren, : 3

Schagatay, E. , Lodin-Sundström, A. & Abrahamsson, E. (2011). Underwater working times in two groups of traditional apnea divers in Asia : the Ama and the Bajau. Diving and hyperbaric medicine, vol. 41: 1, pp. 27-30.

Lodin-Sundström, A. & Schagatay, E. (2010). Spleen contraction during 20 min normobaric hypoxia and 2 min apnea in humans. Aviation, Space and Environmental Medicine, vol. 81: 6, pp. 545-549.  

Schagatay, E. (2009). Deaths from breath-hold diving Reply - Increased reporting improves safety. Diving and Hyperbaric Medicine, vol. 39: 3, pp. 179-179.

Richardson, M. , de Bruijn, R. & Schagatay, E. (2009). Hypoxia augments apnea-induced increase in hematocrit and hemoglobin concentration. European Journal of Applied Physiology, vol. 105: 1, pp. 63-68.  

de Bruijn, R. , Richardson, M. & Schagatay, E. (2009). Oxygen-conserving effect of the diving response in the immersed human. Diving and hyperbaric medicine, vol. 39: 4, pp. 193-199.

Andersson, J. P. A. & Schagatay, E. (2009). Repeated apneas do not affect the hypercapnic ventilatory response in the short term. European Journal of Applied Physiology, vol. 105: 4, pp. 569-74.  

de Bruijn, R. , Richardson, M. & Schagatay, E. (2008). Increased erythropoietin concentration after repeated apneas in humans. European Journal of Applied Physiology, vol. 102: 5, pp. 609-613.  

Andersson, J. P. , Biasoletto-Tjellströma, G. & Schagatay, E. K. (2008). Pulmonary gas exchange is reduced by the cardiovascular diving response in resting humans. Respiratory Physiology & Neurobiology, vol. 160: 3, pp. 320-324.  

Richardson, M. , Lodin, A. , Reimers, J. & Schagatay, E. (2008). Short-term effects of normobaric hypoxia on the human spleen. European Journal of Applied Physiology, vol. 104: 2, pp. 395-399.  

Schagatay, E. , Andersson, J. & Nielsen, B. (2007). Hematological response and diving response during apnea and apnea with face immersion. European Journal of Applied Physiology, vol. 101: 1, pp. 125-132.  

Björklund, G. , Pettersson, S. & Schagatay, E. (2007). Performance predicting factors in prolonged exhausting exercise of varying intensity. European Journal of Applied Physiology, vol. 99: 4, pp. 423-429.  

Richardson, M. , de Bruijn, R. , Holmberg, H. , Björklund, G. , Haughey, H. & Schagatay, E. (2005). Increase of hemoglobin concentration after maximal apneas in divers, skiers and untrained humans. Canadian Journal of Applied Physiology, vol. 30: 3, pp. 276-281.

Schagatay, E. , Haughey, H. & Reimers, J. (2005). Speed of spleen volume changes evoked by serial apneas. European Journal of Applied Physiology, vol. 93: 4, pp. 447-452.  

Andersson, J. , Linér, M. , Fredsted, A. & Schagatay, E. (2004). Cardiovascular and respiratory responses to apneas with and without face immersion in exercising humans. Journal of applied physiology, vol. 96: 3, pp. 1005-1010.  

Schagatay, E. , Richardson, M. , de Bruijn, R. , Haughey, H. & Holmberg, H. C. (2004). Naturlig bloddopning vid fysiologisk stress. Svensk idrottsforskning, vol. 13: 1, pp. 18-21.

Schagatay, E. (2003). Spleen function related to apneic diving in humans. Revue Francaise de Plongé, : 3, pp. 43-46.

Andersson, J. P. , Linér, M. H. , Rünow, E. & Schagatay, E. (2002). Diving response and arterial oxygen saturation during apnea and exercise in breath-hold divers. Journal of applied physiology, vol. 93: 3, pp. 882-886.  

Schagatay, E. , Andersson, J. , Hallén, M. & Pålsson, B. (2001). Selected Contribution : Role of spleen emptying in prolonging apneas in humans. Journal of applied physiology, vol. 90: 4, pp. 1623-1629.

Andersson, J. , Schagatay, E. , Gislén, A. & Holm, B. (2000). Cardiovascular responses to cold water immersions of the forearm and face, and their relationship to apnoea. European Journal of Applied Physiology, vol. 83: 6, pp. 566-572.  

Schagatay, E. , van Kampen, M. , Emanuelsson, S. & Holm, B. (2000). Effects of physical and apnea training on apneic time and diving response in humans.. European Journal of Applied Physiology, vol. 82: 3, pp. 161-169.  

Holm, B. , Schagatay, E. & Andersson, J. (1999). A possible physiological role of the face as a thermosensor in an ancient water ape and in present day man. Perspectives in Human Biology, vol. 4, pp. 41-46.

Andersson, J. & Schagatay, E. (1998). Arterial oxygen desaturation during apnea in humans.. Undersea & Hyperbaric Medicine, vol. 25: 1, pp. 21-25.

Holm, B. , Schagatay, E. , Kobayashi, T. , Masuda, A. , Ohdaira, T. & Honda, Y. (1998). Cardiovascular Change in Elderly Male Breath-hold Divers (Ama) and their Socio-economical Background at Chikura in Japan.. Applied Human Science;Journal of Physiological Anthropology, vol. 17: 5, pp. 181-187.

Andersson, J. & Schagatay, E. (1998). Diving response and apneic time in humans.. Undersea & Hyperbaric Medicine, vol. 25: 1, pp. 13-19.

Schagatay, E. , van Kampen, M. & Andersson, J. (1998). Effects of repeated apneas on apneic time and diving response in non-divers.. Undersea & Hyperbaric Medicine, : 26, pp. 143-149.

Andersson, J. & Schagatay, E. (1997). Effects of lung volume and involuntary breathing movements on the human diving response. European Journal of Applied Physiology, vol. 77: 1/2, pp. 19-24.  

Schagatay, E. (1996). Effects of water and ambient air temperatures on human diving bradycardia.. European Journal of Applied Physiology, vol. 73: 1/2, pp. 1-6.  

Schagatay, E. (1996). Is the human diving response an adaptation to diving? . Bulletin de Medecine Subaquatique et Hyperbare, : 6, pp. 109-122.

Schagatay, E. & van Kampen, M. (1995). Apneic snout immersion in trained pigs elicits a "diving response". . Advances in Experimental Medicine and Biology, vol. 393, pp. 73-76.

Articles, reviews/surveys

Schagatay, E. (2011). Predicting performance in competitive apnea diving, Part III: depth. Diving and Hyperbaric Medicine, vol. 41: 4, pp. 216-228.

Schagatay, E. (2010). Review: Predicting performance in competitive apnea diving. Part II: dynamic apnea. Diving and hyperbaric medicine, vol. 40: 1, pp. 11-22.

Schagatay, E. (2009). Review: Predicting performance in competive apnoea diving, part I: static apnoea. Diving and Hyperbaric Medicine, vol. 39: 2, pp. 88-99.

Chapters in books

Schagatay, E. (2011). Human breath-hold diving ability suggests a selective pressure for diving during human evolution.. In Was man more aquatic in the past? : Fifty Years after Alister Hardy – Waterside Hypothesis of Human Evolution.. Bentham eBooks. pp. 120-147.  

Schagatay, E. & Gislén, A. (2011). Superior underwater vision shows unexpected adaptability of the human eye. In Was man more aquatic in the past? : Fifty Years after Alister Hardy – Waterside Hypothesis of Human Evolution.. Bentham eBooks.

Schagatay, E. (1991). Human sexual dimorphism. In The Aquatic Ape : Fact or Fiction: the first scientific evaluation of a controversial theory of human evolution. London : Souvenir Press. pp. 299-305.

Schagatay, E. (1991). The second crisis. In The aquatic ape : Fact or fiction?.. pp. 296-299.

Schagatay, E. (1991). The significance of the human diving reflex. In The Aquatic Ape : Fact or Fiction: the first scientific evaluation of a controversial theory of human evolution. London : Souvenir Press. pp. 247-254.

Conference papers

Ruesch, A. , McKnight, J. C. , Mulder, E. , Wu, J. , Balfour, S. , Shinn-Cunningham, B. G. , Schagatay, E. & Kainerstorfer, J. M. (2021). Application of near-infrared spectroscopy in human elite freedivers while deepdiving on a single breath hold. In Optics InfoBase Conference Papers.  

Mulder, E. , Irvan, S. , Zeljko, D. , Schagatay, E. & Sieber, A. (2021). Scientific diving methods in breath-hold field research. Paper presented at the 6th European Conference on Scientific Diving, TU Bergakademie Freiburg [ONLINE], 21-22 April, 2021

Schagatay, E. (2016). Diving methods of the Japanese Ama and the Sama-Bajau waterpeople in South East Asia. Paper presented at the HADS workshop, UHMS Conference, Las Vegas, June 8-11, 2016

Rodríguez-Zamora, L. , Patrician, A. , Starfelt, V. , Olander, C. , Lodin-Sundström, A. & Schagatay, E. (2016). Physiological responses to apnea at sea level predict SaO₂ at simulated 5300 m altitude. Paper presented at the 8th European Hypoxia Symposium: High altitude and isobaric hypoxia influence on human performance: science and practice, Police, Slovenia, 8 - 11 September 2016

Schagatay, E. (2015). 50 years after “Physiology of Breath-Hold Diving and the Ama of Japan” – what have we learned?. Paper presented at the EUBS conference, Amsterdam 19-22 August, 2015

Engan, H. K. , Lodin-Sundström, A. & Schagatay, E. (2015). Comparison of two methods potentially reducing metabolism during apnea. Paper presented at the EUBS conference, Amsterdam 19-22 August, 2015

Rodríguez-Zamora, L. , Lodin-Sundström, A. , Engan, H. K. , Höök, M. , Patrician, A. , Degerström, E. & Schagatay, E. (2015). Effects of altitude acclimatization on spleen volume and contraction during submaximal and maximal work in lowlanders. Paper presented at the 20th Annual Congress of the European College of Sport Science (ECSS), Malmö, June 24-27, 2015

Lodin-Sundström, A. , Engan, H. K. & Schagatay, E. (2015). Mechanisms underlying spleen contraction during apneic diving. Paper presented at the EUBS conference, Amsterdam 19-22 August, 2015

Johansson, H. , Engan, H. K. , Melin, M. , Patrician, A. , Lodin-Sundström, A. & Schagatay, E. (2015). No effect of dietary nitrate on the human diving response in dry and wet apneas. Paper presented at the 20th Annual Congress of the European College of Sport Science (ECSS), Malmö, June 24-27, 2015.

Fernández, F. , Patrician, A. , Lodin-Sundström, A. & Schagatay, E. (2015). Predicting static and dynamic apnea performance in elite divers using a 2-minute static apnea test. Paper presented at the EUBS conference, Amsterdam 19-22 August, 2015

Patrician, A. , Johansson, H. , Melin, M. , Lodin-Sundström, A. , Engan, H. K. & Schagatay, E. (2015). The effect of dietary nitrate on spleen contraction and diving response during apnea. Paper presented at the EUBS conference, Amsterdam 19-22 August, 2015

Melin, M. , Lodin-Sundström, A. , Johansson, H. , Patrician, A. , Engan, H. K. & Schagatay, E. (2015). The effect of dietary nitrate on spleen contraction and Hb increase during apnea. Paper presented at the 20th Annual Congress of the European College of Sport Science (ECSS), Malmö, June 24-27, 2015

Schagatay, E. & Abrahamsson, E. (2015). Three profitable non-extreme freediving strategies used by the Bajau - marine hunter-gatherers. Paper presented at the 1st International Conference on Sama Dilaut, Tawi-Tawi, Philippines, December 1-3, 2015  

Lodin-Sundström, A. , Lunde, A. , Palm, O. , Nilsson, S. & Schagatay, E. (2014). Blood boosting by spleen contraction during exercise at different altitudes.. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Schagatay, E. , Nilsson, S. , Palm, O. , Lunde, A. & Lodin-Sundström, A. (2014). Can the cardiorespiratory response to exercise at altitude predict sensitivity to AMS?. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Patrician, A. & Schagatay, E. (2014). Dietary nitrate reduces oxygen cost for dynamic apnea. Paper presented at the 40th Annual Scientific Meeting of the European Underwater and Baromedical Society (EUBS) Wiesbaden, 24-27 Sept 2014.

Schagatay, E. , Schenk, C. & Lodin-Sundström, A. (2014). Dive patterns in Japanese Ama from the 2^nd to the 9^th decade. Paper presented at the 40th Annual Scientific Meeting of the European Underwater and Baromedical Society (EUBS) Wiesbaden, 24-27 Sept 2014.

Engan, H. , Mattiason, S. , Bakker, E. , Patrician, A. & Schagatay, E. (2014). Effect of dietary nitrate supplementation on blood pressure in native lowlanders at altitude. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Patrician, A. , Engan, H. , Lundsten, D. & Schagatay, E. (2014). Effects of Dietary Nitrate on Sleep at Altitude. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Engan, H. , Lodin-Sundström, A. , Schagatay, F. & Schagatay, E. (2014). Enhanced blood boosting spleen contraction after climbing Mt Everest. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Lodin-Sundström, A. , Söderberg, D. , Ekstam, M. & Schagatay, E. (2014). Exercise at simulated altitude enhances spleen contraction. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine. International Society of Mountain Medicine (ISMM), Bolzano, Italy, 25-31 May 2014

Engan, H. , Bakker, E. , Patrician, A. , Gaustad, S. , Karlsen, T. , Wisløff, U. & Schagatay, E. (2014). Reductions in endothelial function during altitude exposure. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Björkhagen, M. , Björkhagen, A. , Engan, H. & Schagatay, E. (2014). Role of group dynamics and leadership in the development of acute mountain sickness. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy,25-31 May, 2014.

Johansson, O. , Patrician, A. , Wisniewski, S. & Schagatay, E. (2014). Spirometry during ascent to altitude and its correlation to acute mountain sickness. Paper presented at the X. World Congress on High Altitude Medicine and Physiology & Mountain Emergency Medicine International Society of Mountain Medicine (ISMM), Bolzano, Italy, 25-31 May, 2014.

Rodríguez-Zamora, L. , Engan, H. K. , Lodin-Sundström, A. , Iglesias, X. , Rodríguez, F. A. & Schagatay, E. (2013). Blood lactate after competitive free diving and synchronized swimming events. Paper presented at the 18th annual congress of the European College of Sports Science Unifying sport science, 26-29 June, Barcelona, Spain

Schagatay, E. (2012). How to dive to 100 m on one breath. Paper presented at the Patan Academy Scientific Seminars, Patan Hospital, Katmandu, Nepal, 5 April 2012

Schagatay, E. (2012). Human physiology of breath-hold diving. Paper presented at the Joint Annual Meeting of the Israeli Society for Hyperbaric and Diving Medicine (ISHDM) & Biennial Meeting of the International High Pressure Biology Group (IHPBG), Eilat, Israel 8-10 November, 2012

Schagatay, E. (2012). On One Breath of Air : Free Divers Physiology. Paper presented at the Amsterdam Conference Extreme physiology March 31, 2012. Academisch Medisch Centrum (AMC) Amsterdam

Schagatay, E. , Johansson, O. , Engan, H. & Lodin-Sundström, A. (2012). Training effects in human breath-hold diving. Paper presented at the Joint Annual Meeting of the Israeli Society for Hyperbaric and Diving Medicine (ISHDM) & Biennial Meeting of the International High Pressure Biology Group (IHPBG), Eilat, Israel 8-10 November, 2012

Vigetun, H. , Appelberg, J. , Forsberg, T. , Kaldensjö, M. & Schagatay, E. (2011). Diving response and Hb elevation during voluntary apnea in patients with obstructive sleep apnea.. In SFSS congress proceedings.

Schagatay, E. (2011). Lung volume and diving performance in breath-holding deep divers.. Paper presented at the European Respiratory Society, Amsterdam, Holland. 24-28 Sept 2011.

Schagatay, E. (2011). Lung volume and diving performance in breath-holding deep divers. Paper presented at the European Respiratory Society (ERS), Amsterdam, Holland 24-28 Sept 2011. Symposium: Live and let dive: diving and lung health, Sunday, 25 September 2011

Engan, H. , Lodin-Sundström, A. & Schagatay, E. (2010). Blood lactate after deep dives in 3 disciplines of competitive apnea. In Proceedings from the European Underwater Baromedical Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.

Havnes, M. B. , Lodin-Sundström, A. , Rasdal, K. V. , Brubakk, A. O. & Schagatay, E. (2010). Bubbles after deep breath-hold dives in competition. In Proceedings from the European Underwater Baromedical Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.

Schagatay, E. & Lodin-Sundström, A. (2010). Effect of fasting on static apnea performance. In Proceedings from the European Underwater Baromed Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.

Lodin-Sundström, A. , Engan, H. , Schagatay, F. & Schagatay, E. (2010). Effects of warm-up on static apnea performance. In Proceedings from the European Underwater Baromedical Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.

Schagatay, E. , Lodin-Sundström, A. & Abrahamsson, E. (2010). Underwater working time in two groups of traditional apneic divers in South East Asia.. In Proceedings from the European Underwater Baromed Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.. pp. 0145-

Lodin-Sundström, A. , Richardson, M. & Schagatay, E. (2009). Biphasic spleen contraction during apnea in divers suggests chemoreceptor input. In Abstract EUBS Aberdeen, UK, 25-28 Aug, 2009..

Schagatay, E. , Lodin-Sundström, A. , Schagatay, F. Z. , Andersson, J. P. A. & Linér, M. H. (2009). Effects of depth and dive type on recovery of arterial oxygen saturation after deep competition apnea dives : Meeting Abstract. In Journal of Physiological Sciences Suppl 1, 2009. Tokyo : (JOURNAL OF PHYSIOLOGICAL SCIENCES). pp. 224--224.

Schagatay, E. , Schagatay, F. , Engan, H. & Lodin-Sundström, A. (2009). Hemoglobin concentration and performance in elite apneic divers of both genders : Meeting abstract. In Journal of Physiological Sciences, Suppl 1, 2009. Tokyo : (Journal of Physiological Sciences). pp. 496--496.

Schagatay, E. , Richardson, M. , Lodin-Sundström, A. & Engan, H. (2009). Hypercapnia augments spleen contraction and Hb increase during apnea : Meeting abstract. In Journal of Physiological Sciences Suppl 1, 2009. Tokyo : (Journal of Physiological Sciences). pp. 268--268.

Schagatay, E. , Engan, H. , Lodin-Sundström, A. & Richardson, M. (2009). Increase in reticulocyte count after 2 weeks of apne training : Meeting abstract. In Journal of Physiological Sciences, Suppl 1, 2009. Tokyo : (Journal of Physiological Sciences). pp. 496--496.

Lodin-Sundström, A. , Engan, H. , Richarson, M. & Schagatay, E. (2009). Oxygen conservation by the diving response improved after 2 weeks of apnea training. In 14^th Annual Congress of the ECSS in Oslo, Norway 24-27 June 2009.

Stenfors, N. , Hubinette, A. , Lodin-Sundström, A. & Schagatay, E. (2009). Spleen contraction and erythrocyte release during exercised-induced hypoxia in patients with COPD. In European Respiratory Society (ERS), Vienna, Austria 12-16 Sept 2009.

Lodin-Sundström, A. , Richardson, M. & Schagatay, E. (2009). Spleen contraction and erythrocyte release in elite apnea divers during submaximal and maximal effort apneas. In 14^th Annual Congress of the ECSS in Oslo, Norway 24-27 June 2009.

Lodin-Sundström, A. & Schagatay, E. (2009). Spleen contraction develops progressively across long apneas : Meeting abstract. In Journal of Physiological Sciences, Suppl 1, 2009. Tokyo : (Journal of Physiological Scioences). pp. 504--504.

Richardson, M. , Lodin-Sundström, A. & Schagatay, E. (2009). Spleen contraction in accessory spleens during apnea in elite divers. In Abstract EUBS Aberdeen, UK, 25-28 Aug, 2009.

Schagatay, E. , Hubinette, A. , Klockervold, I. , Björklund, G. , Enqvist, J. & Holmberg, H. (2009). The effects of 70 days of skiing across Greenland on body composition, cold- and altitude tolerance and work performance in two elderly men. In 14^th Annual Congress of the ECSS in Oslo, Norway 24-27 June 2009.

Schagatay, E. , Björklund, G. & Rydh, F. (2009). VO2 slow component abolished after warm up with apneas. In 14^th Annual Congress of the ECSS in Oslo, Norway 24-27 June 2009.

Richardson, M. & Schagatay, E. (2007). Altitude attenuates apnea-induced increase in haemoglobin concentration. In International Conference on Environmental Ergonomics.

Schagatay, E. , Lodin, A. & Richardson, M. (2007). Lung volume and diving performance in elite apneists. In Proceedings. 33rd EUBS Annual Scientific Meeting, Sharm el Sheik, Egypt, 8-15 September 2007.

Schagatay, E. , Richardson, M. , de Bruijn, R. & Andersson, J. (2006). Cardiovascular and hematological adjustments to apneic diving in humans. -Is the 'spleen-response' part of the diving response?. In Breath-hold diving 2006 : UHMS proceedings, Orlando, USA, June 20-24.. pp. 20--24.

Richardson, M. , de Bruijn, R. , Pettersson, S. , Reimers, J. & Schagatay, E. (2006). CORRELATION BETWEEN SPLEEN SIZE AND HEMATOCRIT DURING APNEA IN HUMANS. In Proceedings of the Undersea and Hyperbaric Medical Society/Divers Alert Network 2006 June 20-21 Workshop. Durham, NC.

Laaksonen, M. , Björklund, G. , Pettersson, S. & Schagatay, E. (2006). Performance predicting factors during prolonged non-steady state cycling. In Book of Abstracts of the 11th Annual Congress of the European College of Sport Science in Lausanne, Switzerland from 5-8 July 2006.

de Bruijn, R. , Richardson, M. , Haughey, H. , Björklund, G. , Pettersson, S. & Schagatay, E. (2005). High hemoglobin levels in divers may be a result of apnea induced EPO-production. In FASEB JOURNAL. (FASEB JOURNAL). pp. A211--A212.

Richardson, M. , de Bruijn, R. & Schagatay, E. (2005). Hypoxia - A trigger for spleen contraction?. In EUBS 2005.

Schagatay, E. , de Bruijn, R. & Richardson, M. (2005). Increase in hematocrit after short and long term apnea training. In Blue 2005. Human Behaviour and Limits in Underwater Environments. Abstract book : International Conference organised by: CNR Institute of Clinical Physiology, Pisa - Italy Apnea Academy - Italy University of Chieti - Italy. Pisa December 1-4 2005.. Pisa : . pp. 57--58.

Schagatay, E. , de Bruijn, R. & Richardson, M. (2005). Increases in diving response, hematocrit and asphyxia tolerance after apnea training.

de Bruijn, R. , Richardson, M. , Milling, U. , Lemon, H. & Schagatay, E. (2004). Erythropoietin production as a result of repeated apneas.

de Bruijn, R. , Richardson, M. , Haughey, H. , Holmberg, H. , Björklund, G. & Schagatay, E. (2004). Hemoglobin levels in elite divers, elite skiers and untrained humans.

Schagatay, E. (2003). Diving response and spleen contraction – two ways of shifting to a diving mode. : Tunisian Federation of Diving (FAST), Bizerte, Tunisia.

Richardson, M. , Schagatay, E. , de Bruijn, R. & Haughey, H. (2003). Hematological response pattern associated with maximal-duration apnea series in untrained subjects : Annual Meeting of the European Underwater and Baromedical Society, Copenhagen, Denmark..

Andersson, J. , Biasoletto-Tjellström, G. & Schagatay, E. (2003). Reduced pulmonary oxygen uptake during apnea in resting humans : European Underwater and Baromedical Society (EUBS) meeting Copenhagen.

Schagatay, E. , Haughey, H. & Reimers, J. (2003). Spleen volume changes evoked by serial apneas : Underwater and Baromedical Society (EUBS) meeting Copenhagen.

de Bruijn, R. , Richardson, M. & Schagatay, E. (2003). The function of the human diving response in the immersed diver. In Annual Meeting of the European Underwater and Baromedical Society, Copenhagen, Denmark.

Richardson, M. , de Bruijn, R. , Haughey, H. , Andersson, J. & Schagatay, E. (2003). The incidence of hematocrit increase during apnea in non divers : European Underwater and Baromedical Society (EUBS) meeting Copenhagen, Denmark.

Doctoral theses

Schagatay, E. (1996). The human diving response : effects of temperature and training. Dis. (Comprehensive summary) Lund : Grahn, 1996

Manuscripts

Richardson, M. , Lodin, A. , Engan, H. & Schagatay, E. Hypercapnia moderates hemoglobin increases during apnea.

Schagatay, E. , Richardson, M. & Lodin, A. Spleen and lung volumes correlate with performance in elite apnea divers.

Rodríguez-Zamora, L. , Engan, H. K. , Lodin-Sundström, A. , Iglesias, X. , Rodríguez, F. A. & Schagatay, E. Blood lactate after competitive free diving and synchronized swimming events.