Publications by Per Morten Fredriksen
94 publications found
Original articles
Relations between the levels of moderate to vigorous physical activity, BMI, dietary habits, cognitive functions and attention problems in 8 to 9 years old pupils: network analysis (PACH Study)
BMC Public Health, 24 (1), 544
DOI 10.1186/s12889-024-18055-2, PubMed 38383413
Retinal venular vessel diameters are smaller during ten days of bed rest
Sci Rep, 13 (1), 19258
DOI 10.1038/s41598-023-46177-x, PubMed 37935771
A pilot study: Exploring the influence of COVID-19 on cardiovascular physiology and retinal microcirculation
Microvasc Res, 150, 104588
DOI 10.1016/j.mvr.2023.104588, PubMed 37468091
Vascular Responses following Light Therapy: A Pilot Study with Healthy Volunteers
J Clin Med, 12 (6)
DOI 10.3390/jcm12062229, PubMed 36983231
A school-based physical activity intervention on psychosocial health outcomes among 11- and 12-year-olds - HOPP-project
Scand J Med Sci Sports, 33 (4), 455-464
DOI 10.1111/sms.14278, PubMed 36420609
Increase in peak oxygen uptake and Andersen test performance in children from age six to ten: The Health Oriented Pedagogical Project (HOPP)
Front Physiol, 13, 976505
DOI 10.3389/fphys.2022.976505, PubMed 36246119
Hematology reference intervals in 6-12-year-old children: the health-oriented pedagogical project (HOPP)
Scand J Clin Lab Invest, 82 (5), 404-409
DOI 10.1080/00365513.2022.2100820, PubMed 35968555
Health and Academic Performance With Happy Children: A Controlled Longitudinal Study Based on the HOPP Project
Front Cardiovasc Med, 9, 820827
DOI 10.3389/fcvm.2022.820827, PubMed 35722126
Variation in Child Serum Cholesterol and Prevalence of Familiar Hypercholesterolemia: The Health Oriented Pedagogical Project (HOPP)
Glob Pediatr Health, 9, 2333794X221079558
DOI 10.1177/2333794X221079558, PubMed 35360145
Children's hair cortisol and hair testosterone concentrations in response to environmental changes: from summer holidays to school
Stress, 24 (6), 998-1007
DOI 10.1080/10253890.2021.1985107, PubMed 34842033
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
J Med Internet Res, 23 (7), e22021
DOI 10.2196/22021, PubMed 34009128
Subcutaneous Adipose Tissue Measured by B-Mode Ultrasound to Assess and Monitor Obesity and Cardio-Metabolic Risk in Children and Adolescents
Biology (Basel), 10 (5)
DOI 10.3390/biology10050449, PubMed 34065304
The effect of physical activity intervention and nutritional habits on anthropometric measures in elementary school children: the health oriented pedagogical project (HOPP)
Int J Obes (Lond), 45 (8), 1677-1686
DOI 10.1038/s41366-021-00830-5, PubMed 33972698
Distribution of creatinine and estimated glomerular filtration rate in healthy schoolchildren: The Health Oriented Pedagogical Project (HOPP)
Scand J Clin Lab Invest, 81 (3), 244-249
DOI 10.1080/00365513.2021.1904281, PubMed 33779452
Cardiometabolic risk factors and early indicators of vascular dysfunction: a cross-sectional cohort study in South African adolescents
BMJ Open, 11 (3), e042955
DOI 10.1136/bmjopen-2020-042955, PubMed 33737426
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)
Scand J Clin Lab Invest, 81 (3), 208-212
DOI 10.1080/00365513.2021.1884893, PubMed 33607925
Daily and Weekly Variation in Children's Physical Activity in Norway: A Cross-Sectional Study of The Health Oriented Pedagogical Project (HOPP)
Sports (Basel), 8 (11)
DOI 10.3390/sports8110150, PubMed 33233516
Presenting Health Status in Children Using a Radar Plot
Sports (Basel), 8 (4)
DOI 10.3390/sports8040053, PubMed 32340129
The Weather Impact on Physical Activity of 6-12 Year Old Children: A Clustered Study of the Health Oriented Pedagogical Project (HOPP)
Sports (Basel), 8 (1)
DOI 10.3390/sports8010009, PubMed 31963824
PMDATA: A Sports Logging Dataset
MMSYS'20: PROCEEDINGS OF THE 2020 MULTIMEDIA SYSTEMS CONFERENCE, 231-236
DOI 10.1145/3339825.3394926
Tyre-pulling as concurrent training
Sport Sci. Health, 15 (1), 49-58
DOI 10.1007/s11332-018-0476-8
Changes in Quality of Life in Elementary School Children-The Health Oriented Pedagogical Project (HOPP)
Sports (Basel), 7 (1)
DOI 10.3390/sports7010011, PubMed 30609845
Peer relationships and quality of life in 11-12-year-old children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 74-81
DOI 10.1177/1403494818767788, PubMed 29754579
Objectively assessed moderate-to-vigorous physical activity levels among primary school children in Norway: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 38-47
DOI 10.1177/1403494818771207, PubMed 29754576
Waist circumference in 6-12-year-old children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 12-20
DOI 10.1177/1403494818767790, PubMed 29754573
Cardiovascular risk factors in a child population: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 28-37
DOI 10.1177/1403494818770130, PubMed 29754570
The effects of a school-based physical activity intervention programme on children's executive control: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 82-91
DOI 10.1177/1403494818767823, PubMed 29754580
Development of weight and height in Norwegian children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 3-11
DOI 10.1177/1403494818769852, PubMed 29754577
Anthropometric measures as fitness indicators in primary school children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 48-53
DOI 10.1177/1403494818770129, PubMed 29754574
Reference intervals for serum lipids and prevalence of dyslipidaemia in 6-12-year-old children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 21-27
DOI 10.1177/1403494818767824, PubMed 29754571
Quality of life in primary school children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 68-73
DOI 10.1177/1403494818767821, PubMed 29754578
Handgrip strength in 6-12-year-old children: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 54-60
DOI 10.1177/1403494818769851, PubMed 29754575
Factors affecting running performance in 6-12-year-olds: The Health Oriented Pedagogical Project (HOPP)
Scand J Public Health, 46 (21_suppl), 61-67
DOI 10.1177/1403494818767816, PubMed 29754572
The health Oriented pedagogical project (HOPP) - a controlled longitudinal school-based physical activity intervention program
BMC Public Health, 17 (1), 370
DOI 10.1186/s12889-017-4282-z, PubMed 28454531
Energy requirements of tire pulling
J Sports Med Phys Fitness, 57 (10), 1245-1251
DOI 10.23736/S0022-4707.17.06896-7, PubMed 28198604
Blood pressure during leg extension in children
Int J Sports Med, 33 (10), 802-6
DOI 10.1055/s-0032-1304589, PubMed 22562747
Mechanisms of exercise-induced pulmonary hypertension in patients with cardiac septal defects
Pediatr Cardiol, 33 (5), 782-90
DOI 10.1007/s00246-012-0216-9, PubMed 22383098
Cardiorespiratory fitness in young adults with a history of renal transplantation in childhood
Pediatr Nephrol, 26 (11), 2041-9
DOI 10.1007/s00467-011-1898-6, PubMed 21541798
A novel BMPR2 gene mutation associated with exercise-induced pulmonary hypertension in septal defects
Scand Cardiovasc J, 44 (6), 331-6
DOI 10.3109/14017431.2010.525747, PubMed 21070126
Cardiorespiratory fitness is a marker of cardiovascular health in renal transplanted children
Pediatr Nephrol, 25 (11), 2343-50
DOI 10.1007/s00467-010-1596-9, PubMed 20676694
Right ventricular systolic pressure response during exercise in adolescents born with atrial or ventricular septal defect
Am J Cardiol, 105 (11), 1610-6
DOI 10.1016/j.amjcard.2010.01.024, PubMed 20494671
Moderate altitude increases right ventricular pressure and oxygen desaturation in adolescents with surgically closed septal defect
Congenit Heart Dis, 5 (6), 556-64
DOI 10.1111/j.1747-0803.2010.00425.x, PubMed 21106015
Changes in cardiac and cognitive function and self-reported outcomes at one year after coronary artery bypass grafting
J Thorac Cardiovasc Surg, 140 (1), 122-8
DOI 10.1016/j.jtcvs.2009.10.034, PubMed 20018306
Non-invasive measurement of the response of right ventricular pressure to exercise, and its relation to aerobic capacity
Cardiol Young, 19 (5), 465-73
DOI 10.1017/S1047951109990928, PubMed 19674500
Ventricular function in patients with transposition of the great arteries operated with arterial switch
Am J Cardiol, 104 (4), 583-9
DOI 10.1016/j.amjcard.2009.04.029, PubMed 19660616
Children and adolescents with congenital heart disease: assessment of behavioural and emotional problems
Eur Child Adolesc Psychiatry, 18 (5), 292-300
DOI 10.1007/s00787-008-0730-8, PubMed 19156353
A normative sample of gait and hopping on one leg parameters in children 7-12 years of age
Gait Posture, 29 (2), 317-21
DOI 10.1016/j.gaitpost.2008.09.016, PubMed 19019681
Declining aerobic capacity of patients with arterial and atrial switch procedures
Pediatr Cardiol, 30 (2), 166-71
DOI 10.1007/s00246-008-9291-3, PubMed 18712434
A normative sample of isotonic and isokinetic muscle strength measurements in children 7 to 12 years of age
Acta Paediatr, 97 (5), 602-7
DOI 10.1111/j.1651-2227.2008.00709.x, PubMed 18355391
The estimated number of patients with adult congenital heart defects in Norway
Scand J Med Sci Sports, 18 (4), 520-5
DOI 10.1111/j.1600-0838.2007.00734.x, PubMed 18067513
Impaired motor competence in school-aged children with complex congenital heart disease
Arch Pediatr Adolesc Med, 161 (10), 945-50
DOI 10.1001/archpedi.161.10.945, PubMed 17909137
Treatment of patients with Eisenmenger's syndrome with Bosentan
Cardiol Young, 17 (3), 288-94
DOI 10.1017/S1047951107000522, PubMed 17451611
An extensive long term follow-up of a cohort of patients with hypoplasia of the left heart
Cardiol Young, 17 (1), 51-5
DOI 10.1017/S1047951106001284, PubMed 17184572
Reduced pulmonary function in children with the Fontan circulation affects their exercise capacity
Cardiol Young, 16 (3), 261-7
DOI 10.1017/S1047951106000345, PubMed 16725065
Clinical and radiologic outcome of off-pump coronary surgery at 12 months follow-up: a prospective randomized trial
Ann Thorac Surg, 81 (6), 2089-95
DOI 10.1016/j.athoracsur.2005.12.003, PubMed 16731135
Effects of supervised aerobic exercise in patients with systemic lupus erythematosus: a pilot study
Arthritis Rheum, 53 (2), 308-12
DOI 10.1002/art.21082, PubMed 15818657
Exercise and training in adults with congenital heart disease
Int J Cardiol, 97 Suppl 1, 35-8
DOI 10.1016/j.ijcard.2004.08.007, PubMed 15590077
Follow-up in patients with congenital cardiac disease more complex than haemodynamic assessment
Cardiol Young, 14 (4), 373-9
DOI 10.1017/S1047951104004044, PubMed 15680042
[Treatment of patients with neuromuscular disease in a warm climate]
Tidsskr Nor Laegeforen, 124 (13-14), 1795-8
PubMed 15229669
[How to scale aerobic capacity in children and adolescents?]
Tidsskr Nor Laegeforen, 123 (22), 3203-5
PubMed 14714009
Aerobic capacity in adults with tetralogy of Fallot
Cardiol Young, 12 (6), 554-9
DOI 10.1017/s1047951102001002, PubMed 12636004
The Fontan procedure in adults
Heart, 86 (3), 330-5
DOI 10.1136/heart.86.3.330, PubMed 11514490
The correlation between peak oxygen uptake (VO2peak) and running performance in children and adolescents. aspects of different units
Scand J Med Sci Sports, 11 (4), 223-8
DOI 10.1034/j.1600-0838.2001.110405.x, PubMed 11476427
Cardiopulmonary exercise performance in adult survivors of the Mustard procedure
Cardiol Young, 11 (4), 407-14
DOI 10.1017/s104795110100052x, PubMed 11558950
Lung function and aerobic capacity in adult patients following modified Fontan procedure
Heart, 85 (3), 295-9
DOI 10.1136/heart.85.3.295, PubMed 11179270
Angiotensin-converting enzyme inhibitors in adults after the Mustard procedure
Am J Cardiol, 87 (5), 660-3, A11
DOI 10.1016/s0002-9149(00)01452-1, PubMed 11230861
Exercise capacity in adult patients with congenitally corrected transposition of the great arteries
Heart, 85 (2), 191-5
DOI 10.1136/heart.85.2.191, PubMed 11156671
Aerobic capacity in adults with various congenital heart diseases
Am J Cardiol, 87 (3), 310-4
DOI 10.1016/s0002-9149(00)01364-3, PubMed 11165966
Physical activity in children and adolescents with congenital heart disease. Aspects of measurements with an activity monitor
Cardiol Young, 10 (2), 98-106
DOI 10.1017/s1047951100006545, PubMed 10817292
Effect of physical training in children and adolescents with congenital heart disease
Cardiol Young, 10 (2), 107-14
DOI 10.1017/s1047951100006557, PubMed 10817293
A comparison of VO2(peak) between patients with congenital heart disease and healthy subjects, all aged 8-17 years
Eur J Appl Physiol Occup Physiol, 80 (5), 409-16
DOI 10.1007/s004210050612, PubMed 10502074
[Aerobic capacity in children and adolescents--Nordic results over the past 45 years]
Tidsskr Nor Laegeforen, 118 (20), 3106-10
PubMed 9760851
Aerobic endurance testing of children and adolescents--a comparison of two treadmill-protocols
Scand J Med Sci Sports, 8 (4), 203-7
DOI 10.1111/j.1600-0838.1998.tb00193.x, PubMed 9764441
Review articles
Cardiovascular effects of air pollution: current evidence from animal and human studies
Am J Physiol Heart Circ Physiol, 320 (4), H1417-H1439
DOI 10.1152/ajpheart.00706.2020, PubMed 33513082
The prevalence of pediatric metabolic syndrome-a critical look on the discrepancies between definitions and its clinical importance
Int J Obes (Lond), 45 (1), 12-24
DOI 10.1038/s41366-020-00713-1, PubMed 33208861
[Physical activity and physical performance in children and adolescents]
Tidsskr Nor Laegeforen, 120 (29), 3567-70
PubMed 11188387
[A protocol for testing aerobic capacity in children and adolescents with congenital heart defects]
Tidsskr Nor Laegeforen, 118 (17), 2636-9
PubMed 9673514
Other articles
Correction: COVID-19 and its effects on endothelium in HIV-positive patients in sub-saharan Africa: cardiometabolic risk, thrombosis and vascular function (ENDOCOVID STUDY)
BMC Infect Dis, 24 (1), 207
DOI 10.1186/s12879-023-08933-2, PubMed 38360639
COVID-19 and its effects on endothelium in HIV-positive patients in sub-Saharan Africa: Cardiometabolic risk, thrombosis and vascular function (ENDOCOVID STUDY)
BMC Infect Dis, 21 (1), 719
DOI 10.1186/s12879-021-06426-8, PubMed 34332551
Exercise-based cardiac rehabilitation is effective in reducing cardiac deaths
Aust J Physiother, 48 (4), 319
DOI 10.1016/s0004-9514(14)60177-x, PubMed 12542038
Book chapters
Slank med trening
In Norsk idrettsmedisin, Medborgeren, Oslo, 20(2005)nr 1, S. 21-24
BIBSYS 051322900
Normalutvikling av utholdenhet og styrke hos barn og unge
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 72(2005)nr 6, S. 14-19
BIBSYS 05119645x
Fysisk aktivitetsnivå, yteevne og overvekt hos barn og unge
In Norsk idrettsmedisin, Medborgeren, Oslo, 18(2003)nr 1, S. 14-16
BIBSYS 030761042
Hvordan uttrykke aerob kapasitet hos barn og unge?
In Tidsskrift for Den norske legeforening, Foreningen, Oslo, 123(2003)nr. 22, S. 3203-3205
BIBSYS 032017138
Fysisk aktivitet og fysisk yteevne hos barn og unge
In Fysisk aktivitet og helse: temahefte, Foreningen, Oslo, S. 12-15
BIBSYS 021845638
Fysisk funksjonsnivå hos barn og unge med medfødt hjertefeil
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 68(2001)nr 7, S. 9-16
BIBSYS 011151927
Aspekter ved overvekt hos barn og unge
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 68(2001)nr 12, S. 11-16
BIBSYS 012077666
Fysisk aktivitet og fysisk yteevne hos barn og unge
In Tidsskrift for Den norske legeforening, Foreningen, Oslo, 120(2000)nr. 29, S. 3567-3570
BIBSYS 010332650
Måling av fysisk aktivitet hos barn og unge
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 66(1999)nr 4, S. 12-15
BIBSYS 990838358
Etiske aspekter ved testing av aerob kapasitet hos hjertesyke barn
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 65(1998)nr 12, S. 21-23
BIBSYS 990261816
Fysisk aktivitet hos barn og unge med medfødte hjertefeil
In Fysioterapeuten, Norsk fysioterapeutforbund, Oslo, 64(1997)nr 9, S. 11-16
BIBSYS 99026128x
Theses
Lifetime perspective on adults with congenital heart disease
P.M. Fredriksen, Oslo
BIBSYS 111909317
Physical functioning in children and adolescents with congenital heart disease
The Norwegian University of Sport and Physical Education, [Oslo], 1 b. (flere pag.)
BIBSYS 001400940, ISBN 82-502-0346-1
Arbeidskapasitet hos barn og unge: utvikling av en belastningstest for sammenligning mellom friske og barn/unge med hjertefeil, samt etablering av normalverdier for arbeidskapasitet i alderen 8-16 år
NIH, Oslo, 71 s., [27] bl.
BIBSYS 960675159