Angelica Lodin-Sundström

Publications

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

Articles in journals

Andersson, J. P. A. , Bacanovic, T. , Chen, P. , Lodin-Sundström, A. , Halder, A. , Persson, G. , Liner, M. H. & Sjogreen, B. (2025). Time courses for pulmonary oxygen uptake and cardiovascular responses are similar during apnea in resting humans. Frontiers in Physiology, vol. 16    

Persson, G. , Lodin-Sundström, A. , Linér, M. H. , Andersson, S. H. A. , Sjögreen, B. & Andersson, J. P. A. (2023). Splenic contraction and cardiovascular responses are augmented during apnea compared to rebreathing in humans. Frontiers in Physiology, vol. 14  

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    

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.    

Robertson, C. , Lodin-Sundström, A. , O'Hara, J. , King, R. , Wainwright, B. & Barlow, M. (2020). Effects of Pre-race Apneas on 400-m Freestyle Swimming Performance. Journal of Strength and Conditioning Research, vol. 34: 3, pp. 828-837.  

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.  

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.

Barlow, M. J. , Elia, A. , Shannon, O. M. , Zacharogianni, A. & Lodin-Sundström, A. (2018). The Effect of a Dietary Nitrate Supplementation in the Form of a Single Shot of Beetroot Juice on Static and Dynamic Apnea Performance. International Journal of Sport Nutrition & Exercise Metabolism, vol. 28: 5, pp. 497-501.  

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.

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.    

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.  

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.  

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.

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. , 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.  

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.  

Chapters in books

Björk, A. , Haage, D. , Lodin-Sundström, A. & Rönngren, Y. (2024). Livsstilsintervention kring psykisk ohälsa i norra Sverige. In Globala utmaningar – lokala lösningar : Forskning för en hållbar samhällsutveckling i norra Sverige. Sundsvall : Mittuniversitetet. pp. 158-159.

Conference papers

Lodin-Sundström, A. , Jaldemark, J. , Mozelius, P. & Tengelin, E. (2025). How to Support Teachers to Support Students With Neuropsychiatric Disorders : Towards Developing a Technology-enhanced Solution. In The 19th annual International Technology, Education and Development Conference. Valencia, Spain :  

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

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

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.

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. , 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

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. , 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

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. , 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.

Doctoral theses

Lodin, A. (2015). Initiation of spleen contraction resulting in natural blood boosting in humans. Dis. (Comprehensive summary) Östersund : Mid Sweden University, 2015 (Mid Sweden University doctoral thesis : 217)  

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.