Erika Schagatay

Pågående forskning

Research is done about the influence of extreme environments on human performance. How do humans physiologically respond to breath hold diving for extended periods or to depths to beyond 100 m? How can climbers reach over 8000 m alitude, and how can athletes keep peforming well at 2000 m? In which ways does temperature affect human performance? How do you train and adapt to extreme environmets? These are some of the research questions in focus in the Enviromental Physilogy Group.

Publikationer

Artiklar i tidskrifter Artiklar, forskningsöversikter Doktorsavhandlingar Kapitel i böcker, del av antologier Konferensbidrag Manuskript

Artiklar i tidskrifter

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, ss. 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, ss. 1029-1036.

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

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

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

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

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, ss. S157-S164.

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, ss. 424-424.

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, ss. 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, ss. 340-348.

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

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

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

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

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, ss. 53-59.

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

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, ss. Art. no. 173

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, ss. 4-9.

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, ss. 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, ss. 545-549.

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

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, ss. 569-74.

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, ss. 193-199.

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, ss. 63-68.

de Bruijn, R. , Richardson, M. & Schagatay, E. (2008). Increased erythropoietin concentration after repeated apneas in humans. European Journal of Applied Physiology, vol. 102: 5, ss. 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, ss. 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, ss. 395-399.

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, ss. 423-429.

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, ss. 125-132.

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, ss. 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, ss. 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, ss. 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, ss. 18-21.

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

Andersson, J. , Linér, M. , 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, ss. 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, ss. 1623-1629.

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, ss. 161-169.

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, ss. 566-572.

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, ss. 41-46.

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

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

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

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, ss. 181-187.

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, ss. 19-24.

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

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

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

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. ,

Artiklar, forskningsöversikter

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

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

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

Doktorsavhandlingar

Schagatay, E. (1996). The human diving response - effects of temperature and training.. Diss. Lund : Grahn, 1996

Kapitel i böcker, del av antologier

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

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

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

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

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

Konferensbidrag

Engan, H. , Lodin-Sundström, A. , Schagatay, F. & Schagatay, E. (2014). Enhanced blood boosting spleen contraction after climbing Mt Everest. .

Schagatay, E. , Schenk, C. & Lodin-Sundström, A. (2014). Dive patterns in Japanese Ama from the 2^nd to the 9^th decade. .

Schagatay, E. , Nilsson, S. , Palm, O. , Lunde, A. & Lodin-Sundström, A. (2014). Can the cardiorespiratory response to exercise at altitude predict sensitivity to AMS?. .

Johansson, O. , Patrician, A. , Wisniewski, S. & Schagatay, E. (2014). Spirometry during ascent to altitude and its correlation to acute mountain sickness. .

Engan, H. , Mattiason, S. , Bakker, E. , Patrician, A. & Schagatay, E. (2014). Effect of dietary nitrate supplementation on blood pressure in native lowlanders at altitude. .

Patrician, A. & Schagatay, E. (2014). Dietary nitrate reduces oxygen cost for dynamic apnea. .

Engan, H. , Bakker, E. , Patrician, A. , Gaustad, S. , Karlsen, T. , Wisløff, U. & Schagatay, E. (2014). Reductions in endothelial function during altitude exposure. .

Björkhagen, M. , Björkhagen, A. , Engan, H. & Schagatay, E. (2014). Role of group dynamics and leadership in the development of acute mountain sickness. .

Lodin-Sundström, A. , Lunde, A. , Palm, O. , Nilsson, S. & Schagatay, E. (2014). Blood boosting by spleen contraction during exercise at different altitudes.. .

Lodin-Sundström, A. , Söderberg, D. , Ekstam, M. & Schagatay, E. (2014). Exercise at simulated altitude enhances spleen contraction. .

Patrician, A. , Engan, H. , Lundsten, D. & Schagatay, E. (2014). Effects of Dietary Nitrate on Sleep at Altitude. .

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. .

Schagatay, E. (2012). On One Breath of Air : Free Divers Physiology. .

Schagatay, E. (2012). How to dive to 100 m on one breath. .

Schagatay, E. (2012). Human physiology of breath-hold diving. .

Schagatay, E. , Johansson, O. , Engan, H. & Lodin-Sundström, A. (2012). Training effects in human breath-hold diving. .

Schagatay, E. (2011). Lung volume and diving performance in breath-holding deep divers. .

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.. I SFSS congress proceedings.

Schagatay, E. (2011). Lung volume and diving performance in breath-holding deep divers.. .

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

Engan, H. , Lodin-Sundström, A. & Schagatay, E. (2010). Blood lactate after deep dives in 3 disciplines of competitive apnea. I Proceedings from the European Underwater Baromedical 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. I 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.. I Proceedings from the European Underwater Baromed Society 36th Annual Meeting Istanbul, Turkey 14-18 Sept 2010.. S. 0145-

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. I 14^th Annual Congress of the ECSS in Oslo, Norway 24-27 June 2009.

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

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

Lodin-Sundström, A. , Engan, H. , Richarson, M. & Schagatay, E. (2009). Oxygen conservation by the diving response improved after 2 weeks of apnea training. I 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. I 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. I European Respiratory Society (ERS), Vienna, Austria 12-16 Sept 2009.

Richardson, M. , Lodin-Sundström, A. & Schagatay, E. (2009). Spleen contraction in accessory spleens during apnea in elite divers. I 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. I Journal of Physiological Sciences Suppl 1, 2009. Tokyo : (JOURNAL OF PHYSIOLOGICAL SCIENCES). S. 224--224.

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

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

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

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

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

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

Richardson, M. , de Bruijn, R. , Pettersson, S. , Reimers, J. & Schagatay, E. (2006). CORRELATION BETWEEN SPLEEN SIZE AND HEMATOCRIT DURING APNEA IN HUMANS. I 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. I Book of Abstracts of the 11th Annual Congress of the European College of Sport Science in Lausanne, Switzerland from 5-8 July 2006.

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?. I Breath-hold diving 2006 : UHMS proceedings, Orlando, USA, June 20-24.. S. 20--24.

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

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

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. I FASEB JOURNAL. (FASEB JOURNAL). S. A211--A212.

Schagatay, E. , de Bruijn, R. & Richardson, M. (2005). Increase in hematocrit after short and long term apnea training. I 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 : . S. 57--58.

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. .

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. .

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. .

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.. .

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. I Annual Meeting of the European Underwater and Baromedical Society, Copenhagen, Denmark.

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

Manuskript

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