Per Morten Fredriksen

Vitenskapelige publikasjoner

• Fabiani, Ester, Strand, Martin Frank, Lindberg, Morten, Goswami, Nandu & Fredriksen, Per Morten (2022). Variation in Child Serum Cholesterol and Prevalence of Familiar Hypercholesterolemia: The Health Oriented Pedagogical Project (HOPP). Global Pediatric Health. ISSN 2333-794X. 9 s 1-8. doi:
  10.1177/2333794X221079558
  FULLTEKST
• Strand, Martin Frank, Fredriksen, Per Morten & Lindberg, Morten (2022). Hematology reference intervals in 6-12-year-old children: the health-oriented pedagogical project (HOPP). Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 82(5) s 404-409. doi:
  10.1080/00365513.2022.2100820
• Tennfjord, Merete Kolberg, Strand, Martin Frank, Østby, Nora, Harbø, Kristin Margrethe Tange & Fredriksen, Per Morten (2022). A school-based physical activity intervention on psychosocial health outcomes among 11- and 12-year-olds – HOPP-project. Scandinavian Journal of Medicine & Science in Sports. ISSN 0905-7188. s 1-10. doi:
  10.1111/sms.14278
• Mamen, Asgeir, Lindberg, Morten & Fredriksen, Per Morten (2022). Increase in peak oxygen uptake and Andersen test performance in children from age six to ten: The Health Oriented Pedagogical Project (HOPP). Frontiers in Physiology. ISSN 1664-042X. 13 doi:
  10.3389/fphys.2022.976505
• Goswami, Nandu, Hansen, Dominique, Gumze, Goran, Brix, Bianca, Schmid-Zalaudek, Karin & Fredriksen, Per Morten (2022). Health and academic performance with happy children: A controlled longitudinal study based on the HOPP project. Frontiers in Cardiovascular Medicine. ISSN 2297-055X. 9:820827 s 1-9. doi:
  10.3389/fcvm.2022.820827
• Goswami, Nandu, Trozic, Irhad, Fredriksen, Maren Valand & Fredriksen, Per Morten (2021). The effect of physical activity intervention and nutritional habits on anthropometric measures in elementary school children: the health oriented pedagogical project (HOPP). International Journal of Obesity. ISSN 0307-0565. 45 s 1677-1686. doi:
  10.1038/s41366-021-00830-5
• Lederer, Agnes Maria, Fredriksen, Per Morten, Nkeh-Chungag, Benedicta Ngwenchi, Everson, Frans, Strijdom, Hans, De Boever, Patrick & Goswami, Nandu (2021). Cardiovascular effects of air pollution: current evidence from animal and human studies. American Journal of Physiology. Heart and Circulatory Physiology. ISSN 0363-6135. 320(4) s H1417-H1439. doi:
  10.1152/ajpheart.00706.2020
• Letswalo, Boitumelo Prescilla, Schmid-Zalaudek, Karin, Brix, Bianca, Matjuda, Edna Ngoakoana, Klosz, Fabian, Obernhumer, Natalie, Gaisl, Michael, Engwa, Godwill Azeh, Sewani-Rusike, Constance, Fredriksen, Per Morten, Nkeh-Chungag, Benedicta & Goswami, Nandu (2021). Cardiometabolic risk factors and early indicators of vascular dysfunction: a cross-sectional cohort study in South African adolescents. BMJ Open. ISSN 2044-6055. 11(3) doi:
  10.1136/bmjopen-2020-042955
• Eie, Anne Merete Øfsti, Strand, Martin Frank, Fredriksen, Per Morten & Lindberg, Morten (2021). Population-based reference intervals for ferritin, iron, transferrin and transferrin saturation and prevalence of iron deficiency in 6–12-year-old children: the Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 81(3) s 208-212. doi:
  10.1080/00365513.2021.1884893
• Lindberg, Morten, Brokner, Mette, Strand, Martin Frank & Fredriksen, Per Morten (2021). Distribution of creatinine and estimated glomerular filtration rate in healthy schoolchildren: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Clinical and Laboratory Investigation. ISSN 0036-5513. 81(3) s 244-249. doi:
  10.1080/00365513.2021.1904281
• Froud, Robert, Hakestad-Hansen, Solveig, Ruud, Hans-Kristian, Foss, Jonathan, Ferguson, Leila Eve & Fredriksen, Per Morten (2021). Relative Performance of Machine Learning and Linear Regression in Predicting Quality of Life and Academic Performance of School Children in Norway: Data Analysis of a Quasi-Experimental Study. Journal of Medical Internet Research. ISSN 1438-8871. 23(7) doi:
  10.2196/22021
• Schmid-Zalaudek, Karin, Brix, Bianca, Sengeis, Marietta, Jantscher, Andreas, Fürhapter-Rieger, Alfred, Müller, Wolfram, Matjuda, Edna Ngoakoana, Mungamba, Muhau M., Nkeh-Chungag, Benedicta, Fredriksen, Per Morten & Goswami, Nandu (2021). Subcutaneous adipose tissue measured by B-mode ultrasound to assess and monitor obesity and cardio-metabolic risk in children and adolescents. Biology (Basel). ISSN 2079-7737. 10(5) doi:
  10.3390/biology10050449
• Schmid-Zalaudek, Karin, Fredriksen, Per Morten, Fabiani, Ester, Fredriksen, Maren Valand, Brix, Bianca, Rössler, Andreas, Jantscher, Andreas & Goswami, Nandu (2021). Children’s hair cortisol and hair testosterone concentrations in response to environmental changes: from summer holidays to school. Stress. ISSN 1025-3890. 24(6) s 998-1007. doi:
  10.1080/10253890.2021.1985107
• Mamen, Asgeir, Braaum, Lars Erik & Fredriksen, Per Morten (2020). Presenting Health Status in Children Using a Radar Plot. Sports. ISSN 2075-4663. 8(4) doi:
  10.3390/sports8040053
• Reisinger, Carolin, Nkeh-Chungag, Benedicta, Fredriksen, Per Morten & Goswami, Nandu (2020). The Prevalence of Pediatric Metabolic Syndrome - A Critical Look on the Discrepancies between Definitions and its Clinical Importance. International Journal of Obesity. ISSN 0307-0565. 45 s 12-24. doi:
  10.1038/s41366-020-00713-1
• Kharlova, Iana, Fredriksen, Maren Valand, Mamen, Asgeir & Fredriksen, Per Morten (2020). Daily and Weekly Variation in Children’s Physical Activity in Norway: A Cross-Sectional Study of The Health Oriented Pedagogical Project (HOPP). Sports. ISSN 2075-4663. 8(11) doi:
  10.3390/sports8110150
• Kharlova, Iana, Deng, Wei Hai, Mamen, Jostein, Mamen, Asgeir, Fredriksen, Maren Valand & Fredriksen, Per Morten (2020). The Weather Impact on Physical Activity of 6–12 Year Old Children: A Clustered Study of the Health Oriented Pedagogical Project (HOPP). Sports. ISSN 2075-4663. 8(9) doi:
  10.3390/sports8010009
• Lasantha Bandara Thambawita, Vajira, Hicks, Steven, Borglia, Hanna, Stensland, Håkon Kvale, Jha, Debesh, Svensen, Martin Kristoffer, Pettersen, Svein Arne, Johansen, Dag, Johansen, Håvard D., Pettersen, Susann Dahl, Nordvang, Simon, Pedersen, Sigurd, Gjerdrum, Anders Tungeland, Grønli, Tor-Morten, Fredriksen, Per Morten, Eg, Ragnhild, Hansen, Kjeld S., Fagernes, Siri, Claudi-Nielsen, Christine, Biørn-Hansen, Andreas, Dang Nguyen, Duc Tien, Kupka, Tomas, Hammer, Hugo Lewi, Jain, Ramesh, Riegler, Michael & Halvorsen, Pål (2020). PMData: a sports logging dataset. I Alay, Özgü & Toni, Laura (red.) MMSys '20: Proceedings of the 11th ACM Multimedia Systems Conference. Association for Computing Machinery (ACM). ISBN 978-1-4503-6845-2. s 231-236. doi:
  10.1145/3339825.3394926
• Fredriksen, Per Morten, Olsen, Helene Kristin & Meza, Trine Johansen (2019). Changes in quality of life in elementary school children—the health oriented pedagogical project (HOPP). Sports. ISSN 2075-4663. 7(1) doi:
  10.3390/sports7010011
• Grønli, Tor-Morten, Biørn-Hansen, Andreas, Fagernes, Siri, Eg, Ragnhild, Hansen, Kjeld S. & Fredriksen, Per Morten (2019). Unveiling the Data Shadow: A Scalable Software Architecture for Public Health and Electronically Assessed Data (PHEAD). NIKT: Norsk IKT-konferanse for forskning og utdanning. ISSN 1892-0713.
  FULLTEKST
• Lezhnieva, Natalia, Fredriksen, Per Morten & Bekkhus, Mona (2018). Peer relationships and quality of life in 11-12-year-old children: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 74-81. doi:
  10.1177/1403494818767788
• Fredriksen, Per Morten, Mamen, Asgeir, Hjelle, Ole Petter & Lindberg, Morten (2018). Handgrip strength in 6–12-year-old children: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 54-60. doi:
  10.1177/1403494818769851
• Fredriksen, Per Morten, Mamen, Asgeir, Gammelsrud, Heidi, Lindberg, Morten & Hjelle, Ole Petter (2018). Factors affecting running performance in 6-12-year-olds: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 61-67. doi:
  10.1177/1403494818767816
• Deng, Wei Hai, Lindberg, Morten, Hjelle, Ole Petter, Mamen, Asgeir & Fredriksen, Per Morten (2018). Cardiovascular risk factors in a child population: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 28-37. doi:
  10.1177/1403494818770130
• Ringdal, Kristen, Ringdal, Gerd Inger, Olsen, Helene Kristin, Mamen, Asgeir & Fredriksen, Per Morten (2018). Quality of life in primary school children: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 68-73. doi:
  10.1177/1403494818767821
• Deng, Wei Hai & Fredriksen, Per Morten (2018). Objectively assessed moderate-to-vigorous physical activity levels among primary school children in Norway – The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 38-47. doi:
  10.1177/1403494818771207
• Mamen, Asgeir & Fredriksen, Per Morten (2018). Anthropometric measures as fitness indicators in primary school children - The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 48-53. doi:
  10.1177/1403494818770129
• Skår, Angelica, Meza, Trine Johansen & Fredriksen, Per Morten (2018). Development of weight and height in Norwegian children - The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 3-11. doi:
  10.1177/1403494818769852
• Fredriksen, Per Morten, Skår, Angelica & Mamen, Asgeir (2018). Waist circumference in 6-12-year-old children – The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 12-20. doi:
  10.1177/1403494818767790
• Mamen, Asgeir & Fredriksen, Per Morten (2018). Tyre-pulling as concurrent training. Sport Sciences for Health. ISSN 1824-7490. s 1-10. doi:
  10.1007/s11332-018-0476-8
• Konijnenberg, Carolien & Fredriksen, Per Morten (2018). The effects of a school-based physical activity intervention programme on children's executive control: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 82-91. doi:
  10.1177/1403494818767823
• Strand, Martin Frank, Fredriksen, Per Morten, Hjelle, Ole Petter & Lindberg, Morten (2018). Reference intervals for serum lipids and prevalence of dyslipidaemia in 6–12-year-old children: The Health Oriented Pedagogical Project (HOPP). Scandinavian Journal of Public Health. ISSN 1403-4948. 46(21) s 21-27. doi:
  10.1177/1403494818767824
• Fredriksen, Per Morten, Hjelle, Ole Petter, Mamen, Asgeir, Meza, Trine Johansen & Westerberg, Ane Cecilie (2017). The health oriented pedagogical project (HOPP) - a controlled longitudinal school-based physical activity intervention program. BMC Public Health. ISSN 1471-2458. 17(1) doi:
  10.1186/s12889-017-4282-z
• Fredriksen, Per Morten & Mamen, Asgeir (2017). Energy requirements of tire pulling. Journal of Sports Medicine and Physical Fitness. ISSN 0022-4707. 57(10) s 1245-1251. doi:
  10.23736/S0022-4-4707.17.06896-7
• Jensen, Rein Magnus, Pettersen, Svein Arne & Fredriksen, Per Morten (2016). Utvikling av fysiske egenskaper hos barn og unge og konsekvenser for motorikken. I Kvikstad, Ingvild (red.) Motorikk i et didaktisk perspektiv. Gyldendal Akademisk. ISBN 9788205491786. s 72-94.
• Brun, Henrik, Moller, Thomas, Freriksen, Per Morten, Thaulow, Erik, Pripp, Are Hugo & Holmstrøm, Henrik Alf B (2012). Mechanisms of Exercise-Induced Pulmonary Hypertension in Patients With Cardiac Septal Defects. Pediatric Cardiology. ISSN 0172-0643. 33(5) s 782-790. doi:
  10.1007/s00246-012-0216-9
• Tangeraas, Trine, Midtvedt, Karsten, Småstuen, Milada C, Hirth, Asle, Fredriksen, Per-Morten, Tonstad, Sigve, Isaksen, Gunhild Aker & Bjerre, Anna Kristina (2011). Cardiorespiratory fitness in young adults with a history of renal transplantation in childhood. Pediatric nephrology (Berlin, West). ISSN 0931-041X. 26(11) s 2041-2049. doi:
  10.1007/s00467-011-1898-6
• Møller, Thomas, Brun, Henrik, Fredriksen, Per Morten, Holmstrøm, Henrik Alf B, Peersen, Kari, Pettersen, Eirik, Grünig, Ekkehard, Mereles, Derliz & Thaulow, Erik (2010). Right Ventricular Systolic Pressure Response During Exercise in Adolescents Born With Atrial or Ventricular Septal Defect. American Journal of Cardiology. ISSN 0002-9149. 105(11) s 1610-1616. doi:
  10.1016/j.amjcard.2010.01.024
• Mathisen, Lars, Lingaas, Per Snorre, Andersen, Marit Helen, Hol, Per Kristian, Fredriksen, Per Morten, Sundet, Kjetil, Rokne, Berit, Wahl, Astrid Klopstad & Fosse, Erik (2010). Changes in cardiac and cognitive function and self-reported outcomes at one year after coronary artery bypass grafting. Journal of Thoracic and Cardiovascular Surgery. ISSN 0022-5223. 140(1) s 122-128. doi:
  10.1016/j.jtcvs.2009.10.034
• Tangeraas, Trine, Midtvedt, Karsten, Fredriksen, Per-Morten, Småstuen, Milada Cvancarova, Mørkrid, Lars & Bjerre, Anna Kristina (2010). Cardiorespiratory fitness is a marker of cardiovascular health in renal transplanted children. Pediatric nephrology (Berlin, West). ISSN 0931-041X. 25(11) s 2343-2350. doi:
  10.1007/s00467-010-1596-9
• Møller, Thomas Friedrich, Brun, Henrik, Fredriksen, Per-Morten, Holmstrøm, Henrik Alf B, Pettersen, Eirik & Thaulow, Erik (2010). Moderate Altitude Increases Right Ventricular Pressure and Oxygen Desaturation in Adolescents with Surgically Closed Septal Defect. Congenital Heart Disease. ISSN 1747-079X. 5(6) s 556-564. doi:
  10.1111/j.1747-0803.2010.00425.x
• Møller, Thomas Friedrich, Leren, Trond P., Eiklid, Kristin Louise, Holmstrøm, Henrik Alf B, Fredriksen, Per-Morten & Thaulow, Erik (2010). A novel BMPR2 gene mutation associated with exercise-induced pulmonary hypertension in septal defects. Scandinavian Cardiovascular Journal. ISSN 1401-7431. 44(6) s 331-336. doi:
  10.3109/14017431.2010.525747
• Møller, Thomas, Peersen, K, Pettersen, Eirik, Thaulow, Erik, Holmstrøm, Henrik Alf B & Fredriksen, PM (2009). Non-invasive measurement of the response of right ventricular pressure to exercise, and its relation to aerobic capacity. Cardiology in the Young. ISSN 1047-9511. 13 s 1-9.
• Fredriksen, Per Morten, Pettersen, Eirik & Thaulow, Erik (2009). Declining aerobic capacity of patients with arterial and atrial switch procedures. Pediatric Cardiology. ISSN 0172-0643. 30(2) s 166-171. doi:
  10.1007/s00246-008-9291-3
• Fredriksen, Per Morten, Diseth, Trond H & Thaulow, Erik (2009). Children and adolescents with congenital heart disease: assessment of behavioural and emotional problems. European Child and Adolescent Psychiatry. ISSN 1018-8827. 18(5) s 292-300. doi:
  10.1007/s00787-008-0730-8
• Holm, Inger, Tveter, Anne Therese, Fredriksen, Per Morten & Vøllestad, Nina Køpke (2009). A normative sample of gait and hopping on one leg parameters in children 7-12 years of age. Gait & Posture. ISSN 0966-6362. 29(2) s 317-321. doi:
  10.1016/j.gaitpost.2008.09.016
• Pettersen, Eirik, Fredriksen, PM, Urheim, S, Thaulow, Erik, Smith, Hans-Jørgen, Smevik, B., Smiseth, Otto A. & Andersen, K (2009). Ventricular Function in Patients With Transposition of the Great Arteries Operated With Arterial Switch. American Journal of Cardiology. ISSN 0002-9149. 104(4) s 583-589. doi:
  10.1016/j.amjcard.2009.04.029
• Holm, Inger, Fredriksen, PM, Fosdahl, M & Vøllestad, Nina Køpke (2008). A normative sample of isotonic and isokinetic muscle strength measurements in children 7 to 12 years of age. Acta Paediatrica. ISSN 0803-5253. 97(5) s 602-607. doi:
  10.1111/j.1651-2227.2008.00709.x
• Holm, Inger, Fredriksen, PM, Fosdahl, MA, Olstad, M & Vøllestad, Nina Køpke (2007). Impaired motor competence in school-aged children with complex congenital heart disease. Archives of Pediatrics & Adolescent Medicine. ISSN 1072-4710. 161 s 945-950.
• Brun, Henrik, Thaulow, Erik, Fredriksen, Per Morten & Holmstrøm, Henrik Alf B (2007). Treatment of patients with Eisenmenger's syndrome with Bosentan. Cardiology in the Young. ISSN 1047-9511. 17(3) s 288-294. doi:
  10.1017/S1047951107000522
• Matthews, Iren, Fredriksen, Per Morten, Bjørnstad, Per G, Thaulow, Erik & Grønn, Morten (2006). Reduced pulmonary function in children with the Fontan circulation affects their exercise capacity. Cardiology in the Young. ISSN 1047-9511. 16(3) s 261-267. doi:
  10.1017/S1047951106000345
• Lingaas, Per Snorre, Hol, Per Kristian, Lundblad, Runar, Rein, Kjell Arne, Mathisen, Lars, Smith, Hans Jørgen, Andersen, Rune, Thaulow, Erik, Tønnessen, Tor Inge, Svennevig, Jan, hauge, sigurd nitter, Fredriksen, Per Morten, andersen, marit & Fosse, Erik (2006). Clinical and radiologic outcome of off-pump coronary surgery at 12 months follow-up: prospective randomized trial. . Annals of Thoracic Surgery. ISSN 0003-4975.
• Lingaas, Per Snorre, Hol, Per Kristian, Lundblad, Runar, Rein, Kjell Arne, Mathisen, Lars, Smith, Hans Jørgen, Andersen, Rune, Thaulow, Erik, Tønnessen, Tor Inge, Svennevig, Jan, hauge, sigurd nitter, Fredriksen, Per Morten, Andersen, Marit Helen & Fosse, Erik (2006). Clinical and radiologic outcome of off-pump coronary surgery at 12 months follow-up: prospective randomized trial. . Annals of Thoracic Surgery. ISSN 0003-4975.
• Lingaas, Per Snorre, Hol, Per Kristian, Lundblad, Runar, Rein, Kjell Arne, Mathisen, Lars, Smith, Hans-Jørgen, Andersen, Rune, Thaulow, Erik, Tønnessen, Tor Inge, Svennevig, Jan Ludvig, hauge, sigurd nitter, Fredriksen, Per Morten, Andersen, Marit Helen & Fosse, Erik (2006). Clinical and Radiological Outcome of Off-Pump Coronary Surgery at 12 Months Follow-Up: A Prospective Randomized Trial. Annals of Thoracic Surgery. ISSN 0003-4975. 81(6) s 289-295. doi:
  10.1016/j.athoracsur.2005.12.003
• Fredriksen, Per Morten & Pettersen, Svein Arne (2005). Normalutvikling av utholdenhet og styrke hos barn og unge. Fysioterapeuten. ISSN 0016-3384. 72(Årg. 72, nr 6) s 14.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2005). Slank med trening. Norsk idrettsmedisin. ISSN 0806-9328. 20(1) s 21-25.
• Clarke-Jenssen, Anne-Cathrine, Fredriksen, PM, Lilleby, Vibke & Mengshoel, Anne Marit (2005). Effects of supervised aerobic exercise in patients with systemic lupus erythematosus: A pilot study. Arthritis and Rheumatism. ISSN 0004-3591. 53
• Thaulow, Erik & Fredriksen, Per Morten (2004). Exercise and training in adults with congenital heart disease. International Journal of Cardiology. ISSN 0167-5273. 97(12) s 35-38.
• Fredriksen, Per Morten, Mengshoel, Anne Marit, Frydenlund, A, Sørbye, Øystein & Thaulow, Erik (2004). Follow-up in patients with congenital cardiac disease more complex than hemodynamic assessment. Cardiology in the Young. ISSN 1047-9511. 14 s 373-379.
• Dahl, Arve, Skjeldal, Ola, Simensen, Andreas, Dalen, H.E., Bråthen, Tone, Ahlvin, Petra, Svendsby, Ellen Kathrine, Sveinall, Anne & Fredriksen, Per Morten (2004). Behandling i varmt klima for pasienter med nevromuskulære sykdommer. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 13(124) s 1795-1798.
• Thaulow, Erik & Fredriksen, Per Morten (2003). Exercise and training. In Diagnosis and Management of Congenital Heart Disease. I Gatzoulis, Michael A, Webb, Gary D & Daubeney, Piers (red.) Diagnosis and Management of Adult Congenital Heart Disease. ELSEVIER, Churchill Livingstone . ISBN 0443071039.
• Pettersen, Svein Arne & Fredriksen, Per Morten (2003). Hvordan uttrykke aerob kapasitet hos barn og unge? Use of scaling factors in peak oxygen uptake (VO2peak). Tidsskrift for Den norske legeforening. ISSN 0029-2001. 123(22) s 3203-3205.
• Fredriksen, Per Morten & Thaulow, Erik (2002). Testing av aerob kapasitet hos barn og unge med medfødte hjertefeil. Ductus. ISSN 1504-0895. 17 s 3-14.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2001). Fysisk aktivitet og fysisk yteevne hos barn og unge. ? 10(7) s 10-16.
• Pettersen, Svein Arne, Fredriksen, Per Morten, Ingjer, Frank & Ingjer, Frank (2001). The correlation between peak oxygen uptake (VO-2peak) and running performance in children and adolescents. Aspects of different units. Scandinavian Journal of Medicine & Science in Sports. ISSN 0905-7188. 11(4) s 223-228.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2001). Aspekter ved overvekt hos barn og unge. Fysioterapeuten. ISSN 0016-3384. 68(12) s 11-16.
• Strømme, Johan Henrik, Halvorsen, Sigrun & Fredriksen, Per Morten (2001). Diagnoses and maximal troponin T values of patients discharged from hospital. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 121(26) s 3041-3045.
• Strømholm, Per, Jensen, U.L., Andersen, W. H. & Fredriksen, Per Morten (2001). Angelman syndrom: Analyse av motorisk utvikling og hjelpetiltak. Fysioterapeuten. ISSN 0016-3384. 9 s 13-17.
• Fredriksen, Per Morten, Hechter, S., Therrien, J., Chen, A., Warsi, M.A., Freeman, M. M. R., Liu, P., Siu, S., Thaulow, Erik & Webb, Gary D (2001). Aerobic capacity in adults with various congenital heart diseases. American Journal of Cardiology. ISSN 0002-9149. 87 s 310-314.
• Fredriksen, Per Morten (2000). Physical functioning in children and adolescents with congenital heart disease.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2000). Fysisk aktivitet og fysisk yteevne hos barn og unge. Tidsskrift for Den norske legeforening. ISSN 0029-2001. (120) s 3567-3570.
• Fredriksen, Per Morten, Hechter, S., Therrien, J., Chen, A., Warsi, M.A., Freeman, M. M. R., Liu, P., Siu, S., Thaulow, Erik & Webb, Gary D (2000). Aerobic capacity in adults with various congenital heart disease. American Journal of Cardiology. ISSN 0002-9149. 87
• Fredriksen, Per Morten, Ingjer, Frank & Thaulow, Erik (2000). Physical activity in children and adolescents with congenital heart disease. Aspects of measurements with an activity monitor. Cardiology in the Young. ISSN 1047-9511. 10 s 98-106.
• Fredriksen, Per Morten, Kahrs, Nina, Blaasvær, S., Sigurdsen, E., Gundersen, Olav, Roeksund, O., Norgård, G., Vik, J.T., Ingjer, Frank & Thaulow, Erik (2000). The effect of physical training in children and adolescents with congenital heart disease. Cardiology in the Young. ISSN 1047-9511. 10 s 107-114.
• Fredriksen, Per Morten, Ingjer, Frank & Thaulow, Erik (2000). Physical activity in children and adolescents with congenital heart disease. Aspects of measurements with an acitivity monitor. ? (10) s 98-106.
• Fredriksen, Per Morten (2000). Physical functioning in children and adolescents with congenital heart disease. Norges idrettshøgskole. ISBN 82-502-0346-1.
• Fredriksen, Per Morten, Kahrs, Nina, Blaasvaer, S, Sigurdsen, E, Gundersen, O, Roeksund, O, Norgaard, G, Vik, JT, Soerbye, O, Ingjer, Frank & Thaulow, Erik (2000). Effect of physical training in children and adolescents with congenital heart disease. ? (10) s 107-114.
• Fredriksen, Per Morten, Ingjer, Frank, Nystad, Wenche & Thaulow, Erik (1999). A comparison of VO2peak between patients with congenital heart disease and healthy subjects, all aged 8-17 years. ? (80) s 409-416.
• Fredriksen, Per Morten, Ingjer, Frank & Thaulow, Erik (1998). Protokoll for testing av aerob kapasitet hos barn og unge med medfødte hjertefeil. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 118 s 2636-2639.
• Fredriksen, Per Morten, Thaulow, Erik, Nystad, Wenche & Ingjer, Frank (1998). Aerob kapasitet hos barn og unge - nordiske resultater gjennom 45 år. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 118 s 3106-3110.
• Fredriksen, Per Morten (1998). Etiske aspekter ved testing av aerob kapasitethos hjertesyke barn. Kunnskap om idrett. ISSN 0809-0890. 3 s 22-27.
• Fredriksen, Per Morten, Ingjer, Frank, Nystad, Wenche & Thaulow, Erik (1998). Aerobic testing of children and adolescents - a comparison of two treadmill-protocols. ? 8 s 203-207.
• Fredriksen, Per Morten, Ingjer, Frank, Nystad, Wenche & Thaulow, Erik (1998). Aerob kapasitet hos barn og unge - nordiske resultater gjennom 45 år. ? 20(118) s 3106-3110.
• Fredriksen, Per Morten & Thaulow, Erik (1998). Etiske aspekter ved testing av aerob kapasitet hos hjertesyke barn. Fysioterapeuten. ISSN 0016-3384. 12
• Fredriksen, Per Morten, Ingjer, Frank & Thaulow, Erik (1998). Protokoll for testing av aerob kapasitet hos barn og unge med medfødte hjertefeil. ? 17(118) s 2636-2639.
• Fredriksen, Per Morten, Ingjer, Frank & Thaulow, Erik (1998). Protokoll for testing av aerob kapasitet hos barn og unge med medfødte hjertefeil. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 118 s 2636-2639.
• Fredriksen, Per Morten & Thaulow, Erik (1997). Fysisk aktivitet hos barn og unge med medfødte hjertefeil. Fysioterapeuten. ISSN 0016-3384. 9(11) s 11-16.

Formidling

• Fredriksen, Per Morten (2022). Parental education level and running performance of children six to twelve years old. Results from the Health Oriented Pedagogical Project (HOPP).
• Goswami, Nandu, Fredriksen, Per Morten, Lundin, Knut, Agu, Chidozie, Olanike Elias, Simiat, Shirley Motaung, Keo, Cvirn, Gerhard, Sourij, Harald, Stelzl, Evelyn, Kessler, Harald, Salon, Adam, Brix, Bianca & Nkeh-Chungag, Benedicta (2021). COVID-19 and its effects on Endothelium in HIV-Positive Patients in Sub-Saharan Africa: Cardiometabolic Risk, Thrombosis and Vascular Function (ENDOCOVID STUDY). BMC Infectious Diseases. ISSN 1471-2334. doi:
  10.1186/s12879-021-06426-8
• Strand, Martin Frank, Fredriksen, Per Morten, Goswami, Nandu, Aukner, Carine & Fredriksen, Maren Valand (2021). Overvekt og fedme i Norske barn: Nåværende påstander, begrensninger og fremtidige anbefalinger.
• Tennfjord, Merete Kolberg, Eg, Ragnhild, Østby, Nora, Harbø, Kristin Margrethe Tange & Fredriksen, Per Morten (2021). Is change in mental health associated with a change in physical activity among 11- and 12-year-olds? – The health oriented pedagogical project (HOPP .
• Fredriksen, Per Morten (2020). The Health Oriented Pedagogical Project (HOPP).
• Mamen, Asgeir, Kharlova, Iana, Deng, Wei Hai, Mamen, Jostein, Fredriksen, Maren Valand & Fredriksen, Per Morten (2020). Influence of age, gender, day length and temperature on physical activity levels of boys and girls in elementary school. The health oriented pedagogical project (HOPP). .
• Mamen, Asgeir & Fredriksen, Per Morten (2019). When should we start testing children for aerobic fitness? A lesson learned from HOPP longitudinal study.
• Mamen, Asgeir & Fredriksen, Per Morten (2019). Change in Health Profile Between Six- and Twelve-Year-Old Children.
• Mamen, Asgeir & Fredriksen, Per Morten (2019). Longitudinal changes in fitness in children 6 to 9 yr old.
• Mamen, Asgeir & Fredriksen, Per Morten (2019). LONGİTUDİNAL CHANGES İN FİTNESS İN CHİLDREN 6 TO 9 YR OLD. THE HEALTH ORİENTED PEDAGOGİCAL PROJECT (HOPP).
• Mamen, Asgeir & Fredriksen, Per Morten (2018). THE FEASIBILITY OF THREE SIMPLE ANTHROPOLOGICAL MEASUREMENTS TO CLASSIFY FITNESS IN CHILDREN.
• Mamen, Asgeir & Fredriksen, Per Morten (2018). Tyre-pulling as concurrent training.
• Braaum, Lars Erik, Meza, Trine Johansen & Fredriksen, Per Morten (2018). Helsefremmende oppvekst i Horten kommune - effekt av aktiv Iæring i barneskolen. Fysioterapeuten. ISSN 0016-3384. 85(3) s 22-26.
  FULLTEKST
• Mamen, Asgeir, Gammelsrud, Heidi, Hjelle, Ole Petter, Lindberg, Morten & Freriksen, Per Morten (2017). Blood values and aerobic power in six years old children.
• Mamen, Asgeir, Westerberg, Ane Cecilie, Hjelle, Ole Petter & Freriksen, Per Morten (2016). DEVELOPMENT IN PERFORMANCE ON THE ANDERSEN SHUTTLE RUN TEST IN BOYS AND GIRLS 6 TO 11 YR OLD.
• Mamen, Asgeir, Westerberg, Ane Cecilie, Hjelle, Ole Petter & Freriksen, Per Morten (2016). Andersen test results correlates poorly with measured maximal oxygen uptake in 6-yr old children.
• Mamen, Asgeir, Westerberg, Ane Cecilie, Hjelle, Ole Petter & Freriksen, Per Morten (2016). WAIST CIRCUMFERENCE AS A MEASURE OF HEALTH AND FITNESS IN CHILDREN 6 TO 11 YEARS OLD.
• Mamen, Asgeir & Freriksen, Per Morten (2015). Nordic Walking and Tire-pulling – concurrent aerobic and endurance strength training? A randomised controlled study.
• Mamen, Asgeir & Freriksen, Per Morten (2014). HIGH INTENSITY INTERVAL TRAINING VS LOW INTENSITY DISTANCE TRAINING USING NORDIC WALKING AND TYRE PULLING.
• Mamen, Asgeir & Fredriksen, Per Morten (2013). Nordic Walking with Tyre Pulling.
• Mamen, Asgeir & Fredriksen, Per Morten (2013). The feasibility of using perceived exertion to estimate maximal heart rate.
• Røe, Lene, Andersen, Lars Bo & Fredriksen, Per Morten (2007). Physical activity level in norwegian children.
• Warem, Louise, Westby, Jørgen, Fredriksen, Per Morten & Johansen, Bjørn (2006). Pulmonary function in patients with complex congenital heart disease.
• Røe, Lene, Andersen, Lars Bo & Fredriksen, Per Morten (2006). Fysisk aktivitetsnivå blandt barn og unge i Norge.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2006). Normalutvikling av utholdenhet og styrke hos barn og unge. Kroppsøving. ISSN 0333-0141. 56(1) s 12-17.
• Matthews, Iren, Fredriksen, Per Morten, Bjørnstad, Per G & Thaulow, Erik (2004). Abnormal lung function and exercise test in children with the Fontan circulation.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2004). Hvordan uttrykke aerob kapasitet hos barn og unge? Use of scaling factors in peak oxygen uptake (VO2peak). Kroppsøving. ISSN 0333-0141. 54(5) s 18-20.
• Fredriksen, Per Morten & Pettersen, Svein Arne (2004). Medieskapt fedmeepidemi. Nordlys. ISSN 0805-5440.
• Hodt, Caroline, Hausken, Veslemøy, Heggebø, Lena Klasson & Fredriksen, Per Morten (2003). Levels of physical activity in 9- to 12-year old children in Norway - do they fulfill the recommendations?
• Clarke-Jenssen, Anne-Cathrine, Fredriksen, Per Morten, Lilleby, Vibke & Mengshoel, Anne Marit (2001). Effects of supervised aerobic exercise in patients with systemic lupus erythematosus.
• Strømme, Johan Henrik, Halvorsen, Sigrun & Fredriksen, Per Morten (2001). Relationship between discharge diagnoses and maximal troponin T values observed in a patient material from a university hospital.
• Kahrs, Nina, Fredriksen, Per Morten & Moors, Dennis (2001). Perceived Physical Competence - The difference between Healthy Children and Children with Congenital Heart Disease.
• Romøren, Kristine, Thu, Beate J., Fredriksen, Per Morten, Karlsen, Jan, Lorenzen, Niels & Evensen, Øystein (2000). Toxic effects of cationic liposomes on fish during immersion.
• Kahrs, Nina, Fredriksen, Per Morten, Aamodt, Inger Lise & Moors, Dennis (1999). Perceived Physical Competence in Ordinary Children and Children with Congenital Heart Diseases.
• Kahrs, Nina, Fredriksen, Per Morten, Aamodt, Inger Lise & Moors, Dennis (1999). Perceived Physical Competence in Ordinary Children and Children with Congenital Heart Diseases.
• Fredriksen, Per-Morten (1998). VO2 peak in patients with TGA and TOF compared with healthy subjects aged 8-12 years.
• Fredriksen, Per-Morten (1998). Belastningstesting av barn og unge med medfødte hjertefeil.
• Fredriksen, Per-Morten (1998). Fysisk aktivitet hos barn og unge med medfødte hjertefeil.

• 2011 - nå
  Professor
  Høyskolen Kristiania, Institutt for helsefag/School of Health Sciences
• 2010 - 2011
  Forsker, laboratorieleder og administrator
  Barnehjerteseksjonen, Kvinne-Barn Klinikken, Oslo Universitetssykehus, Avdeling Rikshospitalet
• 2009 - 2010
  Seksjonsleder
  Kontor for Klinisk Forskning og Biostatistikk, Forskningsstøtteenheten, Rikshospitalet-Radiumhospitalet, Oslo Universitetssykehus, Helse Sør-Øst
• 2000 - 2009
  Forsker
  Klinikk for Klinisk Service, Rikshospitalet
• 1990 - 2000
  Forsker
  Toronto General Hospital, Canada
• 1997 - 1999
  Stipendiat
  Barnehjerteseksjonen, Rikshospitalet med akademisk tilknytning til Norges Idrettshøgskole
• 1996 - 1997
  Forsker
  Fysioterapiavdelingen, Rikshospitalet
• 1991 - 1992
  Turnustjeneste som fysioterapeut
  Gaustad sykehus og Sogn bydel
• 1994 - 1995
  Forsker i prosjektet SISU
  Medinnova
• 1993 - 1994
  Fysioterapeut
  Barneklinikken, Rikshospitalet
• 1992 - 1993
  Fysioterapeut
  Barneavdelingen, Aker sykehus
• 1986 - 1987
  Idrettsbefal
  Rygge flystasjon

• 2018
  Pedagogikk innen høyere utdannelse
  Høyskolen Kristiania
• 2006 - 2010
  Master in Health Politics, Economics and Management
  Universitetet i Oslo
• 1997 - 2000
  Stipendiat
  Norges Idrettshøgskole
• 1997
  Spesialist i barnefysioterapi
• 1994 - 1996
  Hovedfag
  Norges Idrettshøgskole
• 1988 - 1991
  Statens Fysioterapiskole i Oslo
• 1988 - 1989
  Grunnfag psykologi
  Universitetet i Oslo
• 1987 - 1988
  Mellomfag i Helselære og Idrettsbiologi
  Norges Idrettshøgskole
• 1985 - 1986
  Grunnfag Idrett
  Sjøforsvarets Gymnastikkskole