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Publications by Sveinung Berntsen

127 publications found

Original articles

Western B, Ivarsson A, Vistad I, Demmelmaier I, Aaronson NK, Radcliffe G, van Beurden M, Bohus M, Courneya KS, Daley AJ, Galvão DA, Garrod R, Goedendorp MM, Griffith KA, van Harten WH, Hayes SC, Herrero-Roman F, Hiensch AE, Irwin ML, James E, Kenkhuis MF, Kersten MJ, Knoop H, Lucia A, May AM et al. (2024)
Dropout from exercise trials among cancer survivors-An individual patient data meta-analysis from the POLARIS study
Scand J Med Sci Sports, 34 (2), e14575
DOI 10.1111/sms.14575, PubMed 38339809

Malnes L, Berntsen S, Kolle E, Ivarsson A, Dyrstad SM, Resaland GK, Solberg R, Haugen T (2023)
School-based physical activity in relation to active travel - a cluster randomized controlled trial among adolescents enrolled in the school in motion study in Norway
Int J Behav Nutr Phys Act, 20 (1), 136
DOI 10.1186/s12966-023-01534-x, PubMed 37990252

Fosstveit SH, Lindberg K, Bjørnsen T, Sibayan EE, Fjeller JS, Løvold S, Kolnes T, Vårvik FT, Berntsen S, Lohne-Seiler H (2023)
Associations between Power Training-Induced Changes in Body Composition and Physical Function in Older Men: A Pre-Test-Post-Test Experimental Study
Int J Environ Res Public Health, 20 (22)
DOI 10.3390/ijerph20227070, PubMed 37998301

Western B, Demmelmaier I, Vistad I, Hansen BH, Stenling A, Henriksen HB, Nordin K, Blomhoff R, Berntsen S (2023)
How many days of continuous physical activity monitoring reliably represent time in different intensities in cancer survivors
PLoS One, 18 (4), e0284881
DOI 10.1371/journal.pone.0284881, PubMed 37093874

Stavnsbo M, Stenling A, Berntsen S, Chinapaw MJM, Hansen BH, Manios Y, Molnár D, Torstveit MK, Verloigne M, Vicente-Rodríguez G, Westergren T, Bere E (2023)
Does an obesogenic family environment moderate the association between sports participation and body composition in children? The ENERGY project
Pediatr Obes, 18 (7), e13031
DOI 10.1111/ijpo.13031, PubMed 37014019

Ax AK, Husberg M, Johansson B, Demmelmaier I, Berntsen S, Sjövall K, Börjeson S, Nordin K, Davidson T (2023)
Cost-effectiveness of different exercise intensities during oncological treatment in the Phys-Can RCT
Acta Oncol, 62 (4), 414-421
DOI 10.1080/0284186X.2023.2200149, PubMed 37074759

Mazzoni AS, Strandberg E, Börjeson S, Sjövall K, Berntsen S, Demmelmaier I, Nordin K (2023)
Reallocating sedentary time to physical activity: effects on fatigue and quality of life in patients with breast cancer in the Phys-Can project
Support Care Cancer, 31 (2), 151
DOI 10.1007/s00520-023-07614-9, PubMed 36738358

Henriksson A, Strandberg E, Stenling A, Mazzoni AS, Sjövall K, Börjeson S, Raastad T, Demmelmaier I, Berntsen S, Nordin K (2023)
Does inflammation markers or treatment type moderate exercise intensity effects on changes in muscle strength in cancer survivors participating in a 6-month combined resistance- and endurance exercise program? Results from the Phys-Can trial
BMC Sports Sci Med Rehabil, 15 (1), 8
DOI 10.1186/s13102-023-00617-3, PubMed 36658635

Mazzoni AS, Helgesen Bjørke AC, Stenling A, Börjeson S, Sjövall K, Berntsen S, Demmelmaier I, Nordin K (2023)
The Role of Long-Term Physical Activity in Relation to Cancer-Related Health Outcomes: A 12-Month Follow-up of the Phys-Can RCT
Integr Cancer Ther, 22, 15347354231178869
DOI 10.1177/15347354231178869, PubMed 37358262

Skorstad M, Vistad I, Fegran L, Berntsen S, Johannessen B (2022)
Nurse-led consultations reinforced with eHealth technology: a qualitative study of the experiences of patients with gynecological cancer
BMC Nurs, 21 (1), 326
DOI 10.1186/s12912-022-01104-9, PubMed 36434602

Vikmoen O, Wiestad TH, Thormodsen I, Nordin K, Berntsen S, Demmelmaier I, Strandberg E, Raastad T (2022)
Effects of High and Low-To-Moderate Intensity Exercise During (Neo-) Adjuvant Chemotherapy on Muscle Cells, Cardiorespiratory Fitness, and Muscle Function in Women With Breast Cancer: Protocol for a Randomized Controlled Trial
JMIR Res Protoc, 11 (11), e40811
DOI 10.2196/40811, PubMed 36367769

Schauer T, Henriksson A, Strandberg E, Lindman H, Berntsen S, Demmelmaier I, Raastad T, Nordin K, Christensen JF (2022)
Pre-treatment levels of inflammatory markers and chemotherapy completion rates in patients with early-stage breast cancer
Int J Clin Oncol, 28 (1), 89-98
DOI 10.1007/s10147-022-02255-0, PubMed 36269530

Brooke HL, Mazzoni AS, Buffart LM, Berntsen S, Nordin K, Demmelmaier I (2022)
Patterns and determinants of adherence to resistance and endurance training during cancer treatment in the Phys-Can RCT
BMC Sports Sci Med Rehabil, 14 (1), 155
DOI 10.1186/s13102-022-00548-5, PubMed 35964124

Bjørke ACH, Buffart LM, Raastad T, Demmelmaier I, Stenling A, Nordin K, Berntsen S (2022)
Exploring Moderators of the Effect of High vs. Low-to-Moderate Intensity Exercise on Cardiorespiratory Fitness During Breast Cancer Treatment - Analyses of a Subsample From the Phys-Can RCT
Front Sports Act Living, 4, 902124
DOI 10.3389/fspor.2022.902124, PubMed 35903402

Ax AK, Husberg M, Johansson B, Demmelmaier I, Berntsen S, Sjövall K, Börjeson S, Nordin K, Davidson T (2022)
Long-term resource utilisation and associated costs of exercise during (neo)adjuvant oncological treatment: the Phys-Can project
Acta Oncol, 61 (7), 888-896
DOI 10.1080/0284186X.2022.2075238, PubMed 35607981

Malnes L, Haugen T, Hansen BH, Kolle E, Berntsen S (2022)
Establishing the Convergent Validity of the Travel Habit Questions in the Health Behavior in School-Aged Children Questionnaire by Quantifying Active Travel in Norwegian Adolescents
Front Sports Act Living, 4, 761723
DOI 10.3389/fspor.2022.761723, PubMed 35463834

Lindberg K, Lohne-Seiler H, Fosstveit SH, Sibayan EE, Fjeller JS, Løvold S, Kolnes T, Vårvik FT, Berntsen S, Paulsen G, Seynnes O, Bjørnsen T (2022)
Effectiveness of individualized training based on force-velocity profiling on physical function in older men
Scand J Med Sci Sports, 32 (6), 1013-1025
DOI 10.1111/sms.14157, PubMed 35305276

Mazzoni AS, Brooke HL, Berntsen S, Nordin K, Demmelmaier I (2021)
Effect of self-regulatory behaviour change techniques and predictors of physical activity maintenance in cancer survivors: a 12-month follow-up of the Phys-Can RCT
BMC Cancer, 21 (1), 1272
DOI 10.1186/s12885-021-08996-x, PubMed 34823494

Solberg RB, Steene-Johannessen J, Wang Fagerland M, Anderssen SA, Berntsen S, Resaland GK, van Sluijs EMF, Ekelund U, Kolle E (2021)
Aerobic fitness mediates the intervention effects of a school-based physical activity intervention on academic performance. The school in Motion study - A cluster randomized controlled trial
Prev Med Rep, 24, 101648
DOI 10.1016/j.pmedr.2021.101648, PubMed 34976697

Bjornara HB, Berntsen S, te Velde SJ, Fyhri A, Isaksen K, Deforche B, Andersen LB, Stenling A, Bere E (2021)
The impact of weather conditions on everyday cycling with different bike types in parents of young children participating in the CARTOBIKE randomized controlled trial
Int. J. Sustain. Transp.
DOI 10.1080/15568318.2021.1999538

Strandberg E, Bean C, Vassbakk-Svindland K, Brooke HL, Sjövall K, Börjeson S, Berntsen S, Nordin K, Demmelmaier I (2021)
Who makes it all the way? Participants vs. decliners, and completers vs. drop-outs, in a 6-month exercise trial during cancer treatment. Results from the Phys-Can RCT
Support Care Cancer, 30 (2), 1739-1748
DOI 10.1007/s00520-021-06576-0, PubMed 34580784

Lindberg K, Solberg P, Rønnestad BR, Frank MT, Larsen T, Abusdal G, Berntsen S, Paulsen G, Sveen O, Seynnes O, Bjørnsen T (2021)
Should we individualize training based on force-velocity profiling to improve physical performance in athletes?
Scand J Med Sci Sports, 31 (12), 2198-2210
DOI 10.1111/sms.14044, PubMed 34473848

Nunavath V, Johansen S, Johannessen TS, Jiao L, Hansen BH, Berntsen S, Goodwin M (2021)
Deep Learning for Classifying Physical Activities from Accelerometer Data
Sensors (Basel), 21 (16)
DOI 10.3390/s21165564, PubMed 34451005

Bjørnsen T, Wernbom M, Paulsen G, Berntsen S, Brankovic R, Stålesen H, Sundnes J, Raastad T (2021)
Frequent blood flow restricted training not to failure and to failure induces similar gains in myonuclei and muscle mass
Scand J Med Sci Sports, 31 (7), 1420-1439
DOI 10.1111/sms.13952, PubMed 33735465

Solberg RB, Steene-Johannessen J, Anderssen SA, Ekelund U, Säfvenbom R, Haugen T, Berntsen S, Åvitsland A, Lerum Ø, Resaland GK, Kolle E (2021)
Effects of a school-based physical activity intervention on academic performance in 14-year old adolescents: a cluster randomized controlled trial - the School in Motion study
BMC Public Health, 21 (1), 871
DOI 10.1186/s12889-021-10901-x, PubMed 33957895

Bjørnsen T, Wernbom M, Paulsen G, Markworth JF, Berntsen S, D'Souza RF, Cameron-Smith D, Raastad T (2021)
High-frequency blood flow-restricted resistance exercise results in acute and prolonged cellular stress more pronounced in type I than in type II fibers
J Appl Physiol (1985), 131 (2), 643-660
DOI 10.1152/japplphysiol.00115.2020, PubMed 33955259

Strandberg E, Vassbakk-Svindland K, Henriksson A, Johansson B, Vikmoen O, Kudrén D, Schauer T, Lindman H, Wärnberg F, Berntsen S, Demmelmaier I, Nordin K, Raastad T (2021)
Effects of heavy-load resistance training during (neo-)adjuvant chemotherapy on muscle cellular outcomes in women with breast cancer
Medicine (Baltimore), 100 (10), e24960
DOI 10.1097/MD.0000000000024960, PubMed 33725859

Demmelmaier I, Brooke HL, Henriksson A, Mazzoni AS, Bjørke ACH, Igelström H, Ax AK, Sjövall K, Hellbom M, Pingel R, Lindman H, Johansson S, Velikova G, Raastad T, Buffart LM, Åsenlöf P, Aaronson NK, Glimelius B, Nygren P, Johansson B, Börjeson S, Berntsen S, Nordin K (2021)
Does exercise intensity matter for fatigue during (neo-)adjuvant cancer treatment? The Phys-Can randomized clinical trial
Scand J Med Sci Sports, 31 (5), 1144-1159
DOI 10.1111/sms.13930, PubMed 33527488

Schauer T, Mazzoni AS, Henriksson A, Demmelmaier I, Berntsen S, Raastad T, Nordin K, Pedersen BK, Christensen JF (2021)
Exercise intensity and markers of inflammation during and after (neo-) adjuvant cancer treatment
Endocr Relat Cancer, 28 (3), 191-201
DOI 10.1530/ERC-20-0507, PubMed 33608485

la Cour Freiesleben N, Egerup P, Hviid KVR, Severinsen ER, Kolte AM, Westergaard D, Fich Olsen L, Prætorius L, Zedeler A, Christiansen AH, Nielsen JR, Bang D, Berntsen S, Ollé-López J, Ingham A, Bello-Rodríguez J, Storm DM, Ethelberg-Findsen J, Hoffmann ER, Wilken-Jensen C, Jørgensen FS, Westh H, Jørgensen HL, Nielsen HS (2021)
SARS-CoV-2 in first trimester pregnancy: a cohort study
Hum Reprod, 36 (1), 40-47
DOI 10.1093/humrep/deaa311, PubMed 33145598

Henriksson A, Johansson B, Radu C, Berntsen S, Igelström H, Nordin K (2020)
Is it safe to exercise during oncological treatment? A study of adverse events during endurance and resistance training - data from the Phys-Can study
Acta Oncol, 60 (1), 96-105
DOI 10.1080/0284186X.2020.1851046, PubMed 33339484

Moa IF, Berntsen S, Lagestad P (2020)
Cardiorespiratory Fitness Is Associated With Drop Out From Sport in Norwegian Adolescents. A Longitudinal Study
Front Public Health, 8, 502307
DOI 10.3389/fpubh.2020.502307, PubMed 33344393

Kolle E, Solberg RB, Säfvenbom R, Dyrstad SM, Berntsen S, Resaland GK, Ekelund U, Anderssen SA, Steene-Johannessen J, Grydeland M (2020)
The effect of a school-based intervention on physical activity, cardiorespiratory fitness and muscle strength: the School in Motion cluster randomized trial
Int J Behav Nutr Phys Act, 17 (1), 154
DOI 10.1186/s12966-020-01060-0, PubMed 33243246

Bjørnarå HB, Westergren T, Fegran L, Te Velde SJ, Fyhri A, Deforche B, Andersen LB, Berntsen S, Bere E (2020)
Cumbersome but desirable-Breaking the code of everyday cycling
PLoS One, 15 (9), e0239127
DOI 10.1371/journal.pone.0239127, PubMed 32925959

Wiestad TH, Raastad T, Nordin K, Igelström H, Henriksson A, Demmelmaier I, Berntsen S (2020)
The Phys-Can observational study: adjuvant chemotherapy is associated with a reduction whereas physical activity level before start of treatment is associated with maintenance of maximal oxygen uptake in patients with cancer
BMC Sports Sci Med Rehabil, 12, 53
DOI 10.1186/s13102-020-00205-9, PubMed 32908669

Brynjulfsen T, Demmelmaier I, Berntsen S, Foyn TH, Andersen OK, Stang J, Sigdestad JB, Stensrud T, Tufte K, Nielsen A, Westergren T (2020)
Motivation for physical activity in adolescents with asthma
J Asthma, 58 (9), 1247-1255
DOI 10.1080/02770903.2020.1778025, PubMed 32493080

Bjørke ACH, Raastad T, Berntsen S (2020)
Criteria for the determination of maximal oxygen uptake in patients newly diagnosed with cancer: Baseline data from the randomized controlled trial of physical training and cancer (Phys-Can)
PLoS One, 15 (6), e0234507
DOI 10.1371/journal.pone.0234507, PubMed 32526771

Mazzoni AS, Brooke HL, Berntsen S, Nordin K, Demmelmaier I (2020)
Exercise Adherence and Effect of Self-Regulatory Behavior Change Techniques in Patients Undergoing Curative Cancer Treatment: Secondary Analysis from the Phys-Can Randomized Controlled Trial
Integr Cancer Ther, 19, 1534735420946834
DOI 10.1177/1534735420946834, PubMed 32909467

Mikkelsen HET, Vassbakk-Brovold K, Antonsen AJ, Berntsen S, Kersten C, Fegran L (2020)
Cancer Patients' Long-term Experiences of Participating in a Comprehensive Lifestyle Intervention Study While Receiving Chemotherapy
Cancer Nurs, 43 (1), 60-68
DOI 10.1097/NCC.0000000000000650, PubMed 30312192

Nilsson M, Arving C, Thormodsen I, Assmus J, Berntsen S, Nordin K (2019)
Moderate-to-vigorous intensity physical activity is associated with modified fatigue during and after cancer treatment
Support Care Cancer, 28 (7), 3343-3350
DOI 10.1007/s00520-019-05176-3, PubMed 31760521

Mazzoni AS, Carlsson M, Berntsen S, Nordin K, Demmelmaier I (2019)
"Finding my own motivation" - A Mixed Methods Study of Exercise and Behaviour Change Support During Oncological Treatment
Int J Behav Med, 26 (5), 499-511
DOI 10.1007/s12529-019-09809-z, PubMed 31441015

Johannessen B, Syvertsen S, Kersten C, Berntsen S (2019)
Cancer-related fatigue: Patients' experiences of an intervention at a green care rehabilitation farm
Complement Ther Clin Pract, 37, 133-139
DOI 10.1016/j.ctcp.2019.101062, PubMed 31582199

Bjørnarå HB, Berntsen S, J Te Velde S, Fyhri A, Deforche B, Andersen LB, Bere E (2019)
From cars to bikes - The effect of an intervention providing access to different bike types: A randomized controlled trial
PLoS One, 14 (7), e0219304
DOI 10.1371/journal.pone.0219304, PubMed 31291314

Bjørnsen T, Wernbom M, Kirketeig A, Paulsen G, Samnøy L, Bækken L, Cameron-Smith D, Berntsen S, Raastad T (2019)
Type 1 Muscle Fiber Hypertrophy after Blood Flow-restricted Training in Powerlifters
Med Sci Sports Exerc, 51 (2), 288-298
DOI 10.1249/MSS.0000000000001775, PubMed 30188363

Berntsen S, Edvardsen E, Gerbi S, Kolsgaard ML, Anderssen SA (2019)
Do Obese Children Achieve Maximal Heart Rate during Treadmill Running?
Sports (Basel), 7 (1)
DOI 10.3390/sports7010026, PubMed 30669424

Bjørnsen T, Wernbom M, Løvstad A, Paulsen G, D'Souza RF, Cameron-Smith D, Flesche A, Hisdal J, Berntsen S, Raastad T (2018)
Delayed myonuclear addition, myofiber hypertrophy, and increases in strength with high-frequency low-load blood flow restricted training to volitional failure
J Appl Physiol (1985), 126 (3), 578-592
DOI 10.1152/japplphysiol.00397.2018, PubMed 30543499

Arving C, Assmus J, Thormodsen I, Berntsen S, Nordin K (2018)
Early rehabilitation of cancer patients-An individual randomized stepped-care stress-management intervention
Psychooncology, 28 (2), 301-308
DOI 10.1002/pon.4940, PubMed 30408282

Samdal GB, Meland E, Eide GE, Berntsen S, Abildsnes E, Stea TH, Mildestvedt T (2018)
The Norwegian Healthy Life Centre Study: A pragmatic RCT of physical activity in primary care
Scand J Public Health, 47 (1), 18-27
DOI 10.1177/1403494818785260, PubMed 30074437

Henriksen HB, Berntsen S, Paur I, Zucknick M, Skjetne AJ, Bøhn SK, Henriksen C, Smeland S, Carlsen MH, Blomhoff R (2018)
Validation of two short questionnaires assessing physical activity in colorectal cancer patients
BMC Sports Sci Med Rehabil, 10, 8
DOI 10.1186/s13102-018-0096-2, PubMed 29854408

Samdal GB, Meland E, Eide GE, Berntsen S, Abildsnes E, Stea TH, Mildestvedt T (2018)
Participants at Norwegian Healthy Life Centres: Who are they, why do they attend and how are they motivated? A cross-sectional study
Scand J Public Health, 46 (7), 774-781
DOI 10.1177/1403494818756081, PubMed 29516790

Henriksen HB, Carlsen MH, Paur I, Berntsen S, Bøhn SK, Skjetne AJ, Kværner AS, Henriksen C, Andersen LF, Smeland S, Blomhoff R (2018)
Relative validity of a short food frequency questionnaire assessing adherence to the Norwegian dietary guidelines among colorectal cancer patients
Food Nutr Res, 62
DOI 10.29219/fnr.v62.1306, PubMed 29545734

Vassbakk-Brovold K, J Antonsen A, Berntsen S, Kersten C, Fegran L (2018)
Experiences of Patients With Breast Cancer of Participating in a Lifestyle Intervention Study While Receiving Adjuvant Chemotherapy
Cancer Nurs, 41 (3), 218-225
DOI 10.1097/NCC.0000000000000476, PubMed 28221215

Bjørnarå HB, Berntsen S, Te Velde SJ, Fegran L, Fyhri A, Deforche B, Andersen LB, Bere E (2017)
From cars to bikes - the feasibility and effect of using e-bikes, longtail bikes and traditional bikes for transportation among parents of children attending kindergarten: design of a randomized cross-over trial
BMC Public Health, 17 (1), 981
DOI 10.1186/s12889-017-4995-z, PubMed 29282108

Vassbakk-Brovold K, Berntsen S, Fegran L, Lian H, Mjåland O, Mjåland S, Nordin K, Seiler S, Kersten C (2017)
Lifestyle changes in cancer patients undergoing curative or palliative chemotherapy: is it feasible?
Acta Oncol, 57 (6), 831-838
DOI 10.1080/0284186X.2017.1413247, PubMed 29239243

Haraldstad K, Rohde G, Stea TH, Lohne-Seiler H, Hetlelid K, Paulsen G, Berntsen S (2017)
Changes in health-related quality of life in elderly men after 12 weeks of strength training
Eur Rev Aging Phys Act, 14, 8
DOI 10.1186/s11556-017-0177-3, PubMed 28572857

Berntsen S, Malnes L, Langåker A, Bere E (2017)
Physical activity when riding an electric assisted bicycle
Int J Behav Nutr Phys Act, 14 (1), 55
DOI 10.1186/s12966-017-0513-z, PubMed 28446180

Stunes AK, Syversen U, Berntsen S, Paulsen G, Stea TH, Hetlelid KJ, Lohne-Seiler H, Mosti MP, Bjørnsen T, Raastad T, Haugeberg G (2017)
High doses of vitamin C plus E reduce strength training-induced improvements in areal bone mineral density in elderly men
Eur J Appl Physiol, 117 (6), 1073-1084
DOI 10.1007/s00421-017-3588-y, PubMed 28382551

Mazzoni AS, Nordin K, Berntsen S, Demmelmaier I, Igelström H (2017)
Comparison between logbook-reported and objectively-assessed physical activity and sedentary time in breast cancer patients: an agreement study
BMC Sports Sci Med Rehabil, 9, 8
DOI 10.1186/s13102-017-0072-2, PubMed 28373907

Berntsen S, Aaronson NK, Buffart L, Börjeson S, Demmelmaier I, Hellbom M, Hojman P, Igelström H, Johansson B, Pingel R, Raastad T, Velikova G, Åsenlöf P, Nordin K (2017)
Design of a randomized controlled trial of physical training and cancer (Phys-Can) - the impact of exercise intensity on cancer related fatigue, quality of life and disease outcome
BMC Cancer, 17 (1), 218
DOI 10.1186/s12885-017-3197-5, PubMed 28347291

Sanda B, Vistad I, Haakstad LAH, Berntsen S, Sagedal LR, Lohne-Seiler H, Torstveit MK (2017)
Reliability and concurrent validity of the International Physical Activity Questionnaire short form among pregnant women
BMC Sports Sci Med Rehabil, 9, 7
DOI 10.1186/s13102-017-0070-4, PubMed 28316789

Abildsnes E, Rohde G, Berntsen S, Stea TH (2017)
Fun, influence and competence-a mixed methods study of prerequisites for high school students' participation in physical education
BMC Public Health, 17 (1), 241
DOI 10.1186/s12889-017-4154-6, PubMed 28283044

Abildsnes E, Meland E, Mildestvedt T, Stea TH, Berntsen S, Samdal GB (2017)
The Norwegian Healthy Life Study: protocol for a pragmatic RCT with longitudinal follow-up on physical activity and diet for adults
BMC Public Health, 17 (1), 18
DOI 10.1186/s12889-016-3981-1, PubMed 28056906

Westergren T, Berntsen S, Lødrup Carlsen KC, Mowinckel P, Håland G, Fegran L, Carlsen KH (2016)
Perceived exercise limitation in asthma: The role of disease severity, overweight, and physical activity in children
Pediatr Allergy Immunol, 28 (1), 86-92
DOI 10.1111/pai.12670, PubMed 27734537

Stea TH, Haugen T, Berntsen S, Guttormsen V, Øverby NC, Haraldstad K, Meland E, Abildsnes E (2016)
Using the Intervention Mapping protocol to develop a family-based intervention for improving lifestyle habits among overweight and obese children: study protocol for a quasi-experimental trial
BMC Public Health, 16 (1), 1092
DOI 10.1186/s12889-016-3766-6, PubMed 27756346

Berntsen S, Stølevik SB, Mowinckel P, Nystad W, Stensrud T (2016)
Lung Function Monitoring; A Randomized Agreement Study
Open Respir Med J, 10, 51-7
DOI 10.2174/1874306401610010051, PubMed 27583055

Richardsen KR, Falk RS, Jenum AK, Mørkrid K, Martinsen EW, Ommundsen Y, Berntsen S (2016)
Predicting who fails to meet the physical activity guideline in pregnancy: a prospective study of objectively recorded physical activity in a population-based multi-ethnic cohort
BMC Pregnancy Childbirth, 16 (1), 186
DOI 10.1186/s12884-016-0985-x, PubMed 27460363

Richardsen KR, Mdala I, Berntsen S, Ommundsen Y, Martinsen EW, Sletner L, Jenum AK (2016)
Objectively recorded physical activity in pregnancy and postpartum in a multi-ethnic cohort: association with access to recreational areas in the neighbourhood
Int J Behav Nutr Phys Act, 13, 78
DOI 10.1186/s12966-016-0401-y, PubMed 27386943

Bjørnarå HB, Øverby NC, Stea TH, Torstveit MK, Hillesund ER, Andersen LF, Berntsen S, Bere E (2016)
The association between adherence to the New Nordic Diet and diet quality
Food Nutr Res, 60, 31017
DOI 10.3402/fnr.v60.31017, PubMed 27257844

Vassbakk-Brovold K, Kersten C, Fegran L, Mjåland O, Mjåland S, Seiler S, Berntsen S (2016)
Cancer patients participating in a lifestyle intervention during chemotherapy greatly over-report their physical activity level: a validation study
BMC Sports Sci Med Rehabil, 8, 10
DOI 10.1186/s13102-016-0035-z, PubMed 27099757

Stålesen J, Vik FN, Hansen BH, Berntsen S (2016)
Comparison of three activity monitors for estimating sedentary time among children
BMC Sports Sci Med Rehabil, 8, 2
DOI 10.1186/s13102-016-0028-y, PubMed 26855784

Westergren T, Fegran L, Nilsen T, Haraldstad K, Kittang OB, Berntsen S (2016)
Active play exercise intervention in children with asthma: a PILOT STUDY
BMJ Open, 6 (1), e009721
DOI 10.1136/bmjopen-2015-009721, PubMed 26733570

Stea TH, Stølevik SB, Berntsen S, Ezzathkah Bastani N, Paulsen G, Lohne Seiler H, Hetlelid KJ, Blomhoff R, Mansoor MA (2016)
Effect of Omega-3 and Vitamins E + C Supplements on the Concentration of Serum B-Vitamins and Plasma Redox Aminothiol Antioxidant Status in Elderly Men after Strength Training for Three Months
Ann Nutr Metab, 68 (2), 145-55
DOI 10.1159/000443847, PubMed 26848570

Abildsnes E, Stea TH, Berntsen S, Omfjord CS, Rohde G (2015)
Physical education Teachers' and public health Nurses' perception of Norwegian high school Students' participation in physical education - a focus group study
BMC Public Health, 15, 1295
DOI 10.1186/s12889-015-2660-y, PubMed 26704344

Bianba B, Yangzong Y, Gonggalanzi G, Berntsen S, Andersen LB, Stigum H, Nafstad P, Bjertness E (2015)
Anthropometric Measures of 9- to 10-Year-Old Native Tibetan Children Living at 3700 and 4300 m Above Sea Level and Han Chinese Living at 3700 m
Medicine (Baltimore), 94 (42), e1516
DOI 10.1097/MD.0000000000001516, PubMed 26496254

Vassbakk-Brovold K, Berntsen S, Fegran L, Lian H, Mjåland O, Mjåland S, Seiler S, Kersten C (2015)
Individualized Comprehensive Lifestyle Intervention in Patients Undergoing Chemotherapy with Curative or Palliative Intent: Who Participates?
PLoS One, 10 (7), e0131355
DOI 10.1371/journal.pone.0131355, PubMed 26176950

Bjørnsen T, Salvesen S, Berntsen S, Hetlelid KJ, Stea TH, Lohne-Seiler H, Rohde G, Haraldstad K, Raastad T, Køpp U, Haugeberg G, Mansoor MA, Bastani NE, Blomhoff R, Stølevik SB, Seynnes OR, Paulsen G (2015)
Vitamin C and E supplementation blunts increases in total lean body mass in elderly men after strength training
Scand J Med Sci Sports, 26 (7), 755-63
DOI 10.1111/sms.12506, PubMed 26129928

Vik FN, Lien N, Berntsen S, De Bourdeaudhuij I, Grillenberger M, Manios Y, Kovacs E, Chinapaw MJ, Brug J, Bere E (2015)
Evaluation of the UP4FUN intervention: a cluster randomized trial to reduce and break up sitting time in European 10-12-year-old children
PLoS One, 10 (3), e0122612
DOI 10.1371/journal.pone.0122612, PubMed 25826704

Mikkelsen HE, Brovold KV, Berntsen S, Kersten C, Fegran L (2015)
Palliative Cancer Patients' Experiences of Participating in a Lifestyle Intervention Study While Receiving Chemotherapy
Cancer Nurs, 38 (6), E52-8
DOI 10.1097/NCC.0000000000000235, PubMed 25730593

Verloigne M, Berntsen S, Ridgers ND, Cardon G, Chinapaw M, Altenburg T, Brug J, Bere E, De Bourdeaudhuij I, Van Lippevelde W, Maes L (2014)
The UP4FUN Intervention Effect on Breaking Up Sedentary Time in 10- to 12-Year-Old Belgian Children: The ENERGY-Project
Pediatr Exerc Sci, 27 (2), 234-42
DOI 10.1123/pes.2014-0039, PubMed 25389211

Westergren T, Ommundsen Y, Lødrup Carlsen KC, Carlsen KH, Mowinckel P, Fegran L, Berntsen S (2014)
A nested case-control study: personal, social and environmental correlates of vigorous physical activity in adolescents with asthma
J Asthma, 52 (2), 155-61
DOI 10.3109/02770903.2014.955190, PubMed 25134784

Stea TH, Andersen LF, Paulsen G, Hetlelid KJ, Lohne-Seiler H, Adnanes S, Bjørnsen T, Salvesen S, Berntsen S (2014)
Validation of a pre-coded food diary used among 60-80 year old men: comparison of self-reported energy intake with objectively recorded energy expenditure
PLoS One, 9 (7), e102029
DOI 10.1371/journal.pone.0102029, PubMed 25019949

Paulsen G, Cumming KT, Hamarsland H, Børsheim E, Berntsen S, Raastad T (2014)
Can supplementation with vitamin C and E alter physiological adaptations to strength training?
BMC Sports Sci Med Rehabil, 6, 28
DOI 10.1186/2052-1847-6-28, PubMed 25075311

Bianba, Berntsen S, Andersen LB, Stigum H, Ouzhuluobu, Nafstad P, Wu T, Bjertness E (2014)
Exercise capacity and selected physiological factors by ancestry and residential altitude: cross-sectional studies of 9-10-year-old children in Tibet
High Alt Med Biol, 15 (2), 162-9
DOI 10.1089/ham.2013.1084, PubMed 24836751

Mørkrid K, Jenum AK, Berntsen S, Sletner L, Richardsen KR, Vangen S, Holme I, Birkeland KI (2014)
Objectively recorded physical activity and the association with gestational diabetes
Scand J Med Sci Sports, 24 (5), e389-97
DOI 10.1111/sms.12183, PubMed 24894027

Berntsen S, Lødrup Carlsen KC, Anderssen SA, Mowinckel P, Carlsen KH (2013)
Factors associated with aerobic fitness in adolescents with asthma
Respir Med, 107 (8), 1164-71
DOI 10.1016/j.rmed.2013.04.009, PubMed 23632101

Yangzong, Berntsen S, Bjertness E, Stigum H, Gonggalanzi, Bianba, Nafstad P (2013)
Lung function among 9- to 10-year-old Tibetan and Han Chinese schoolchildren living at different altitudes in Tibet
High Alt Med Biol, 14 (1), 31-6
DOI 10.1089/ham.2012.1034, PubMed 23537258

Arving C, Thormodsen I, Brekke G, Mella O, Berntsen S, Nordin K (2013)
Early rehabilitation of cancer patients - a randomized controlled intervention study
BMC Cancer, 13, 9
DOI 10.1186/1471-2407-13-9, PubMed 23294513

Berntsen S, Richardsen KR, Mørkrid K, Sletner L, Birkeland KI, Jenum AK (2012)
Objectively recorded physical activity in early pregnancy: a multiethnic population-based study
Scand J Med Sci Sports, 24 (3), 594-601
DOI 10.1111/sms.12034, PubMed 23278771

Sachs-Olsen C, Berntsen S, Lødrup Carlsen KC, Anderssen SA, Mowinckel P, Carlsen KH (2012)
Time spent in vigorous physical activity is associated with increased exhaled nitric oxide in non-asthmatic adolescents
Clin Respir J, 7 (1), 64-73
DOI 10.1111/j.1752-699X.2012.00283.x, PubMed 22329950

Jenum AK, Mørkrid K, Sletner L, Vangen S, Torper JL, Nakstad B, Voldner N, Rognerud-Jensen OH, Berntsen S, Mosdøl A, Skrivarhaug T, Vårdal MH, Holme I, Yajnik CS, Birkeland KI (2011)
Impact of ethnicity on gestational diabetes identified with the WHO and the modified International Association of Diabetes and Pregnancy Study Groups criteria: a population-based cohort study
Eur J Endocrinol, 166 (2), 317-24
DOI 10.1530/EJE-11-0866, PubMed 22108914

Berntsen S, Stafne SN, Mørkved S (2011)
Physical activity monitor for recording energy expenditure in pregnancy
Acta Obstet Gynecol Scand, 90 (8), 903-7
DOI 10.1111/j.1600-0412.2011.01172.x, PubMed 21535435

Aandstad A, Holme I, Berntsen S, Anderssen SA (2011)
Validity and reliability of the 20 meter shuttle run test in military personnel
Mil Med, 176 (5), 513-8
DOI 10.7205/milmed-d-10-00373, PubMed 21634295

Berntsen S (2011)
Physical Activity in Childhood Asthma: Friend or Foe?
Am. J. Lifestyle Med., 5 (1), 33-39
DOI 10.1177/1559827610385209

Wouda MF, Lundgaard E, Lannem AM, Mowinckel P, Berntsen S (2011)
Evaluation of Sensewear Armband to estimate energy expenditure during wheelchair propulsion
Eur. J. Physiother., 13 (2), 42-49
DOI 10.3109/14038196.2011.572997

Berntsen S (2011)
Physical activity and aerobic fitness in childhood: associated with asthma?
Clin Respir J, 5 (1), 59
DOI 10.1111/j.1752-699X.2010.00197.x, PubMed 21159142

Berntsen S, Edvardsen E, Carlsen KH, Kolsgaard ML, Carlsen KC (2010)
Effects of posture on lung function in obese children
Clin Respir J, 5 (4), 252-7
DOI 10.1111/j.1752-699X.2010.00227.x, PubMed 21801326

Bueso AK, Berntsen S, Mowinckel P, Andersen LF, Lødrup Carlsen KC, Carlsen KH (2010)
Dietary intake in adolescents with asthma--potential for improvement
Pediatr Allergy Immunol, 22 (1 Pt 1), 19-24
DOI 10.1111/j.1399-3038.2010.01013.x, PubMed 20961335

Bianba B, Berntsen S, Andersen LB, Stigum H, Bjertness E (2010)
Estimation of peak oxygen uptake from maximal power output among 9-10 year-old children in Lhasa, Tibet
J Sports Med Phys Fitness, 50 (3), 274-80
PubMed 20842087

Berntsen S, Mowinckel P, Carlsen KH, Lødrup Carlsen KC, Pollestad Kolsgaard ML, Joner G, Anderssen SA (2010)
Obese children playing towards an active lifestyle
Int J Pediatr Obes, 5 (1), 64-71
DOI 10.3109/17477160902957166, PubMed 19437243

Håland G, Lødrup Carlsen KC, Mowinckel P, Munthe-Kaas MC, Devulapalli CS, Berntsen S, Carlsen KH (2009)
Lung function at 10 yr is not impaired by early childhood lower respiratory tract infections
Pediatr Allergy Immunol, 20 (3), 254-60
DOI 10.1111/j.1399-3038.2008.00781.x, PubMed 19302174

Berntsen S, Lødrup Carlsen KC, Hageberg R, Aandstad A, Mowinckel P, Anderssen SA, Carlsen KH (2009)
Asthma symptoms in rural living Tanzanian children; prevalence and the relation to aerobic fitness and body fat
Allergy, 64 (8), 1166-71
DOI 10.1111/j.1398-9995.2009.01979.x, PubMed 19210365

Berntsen S, Carlsen KC, Anderssen SA, Mowinckel P, Hageberg R, Bueso AK, Carlsen KH (2009)
Norwegian adolescents with asthma are physical active and fit
Allergy, 64 (3), 421-6
DOI 10.1111/j.1398-9995.2008.01845.x, PubMed 19175596

Berntsen S, Wisløff T, Nafstad P, Nystad W (2008)
Lung function increases with increasing level of physical activity in school children
Pediatr Exerc Sci, 20 (4), 402-10
DOI 10.1123/pes.20.4.402, PubMed 19168917

Berntsen S, Hageberg R, Aandstad A, Mowinckel P, Anderssen SA, Carlsen KH, Andersen LB (2008)
Validity of physical activity monitors in adults participating in free-living activities
Br J Sports Med, 44 (9), 657-64
DOI 10.1136/bjsm.2008.048868, PubMed 18628358

Stensrud T, Berntsen S, Carlsen KH (2007)
Exercise capacity and exercise-induced bronchoconstriction (EIB) in a cold environment
Respir Med, 101 (7), 1529-36
DOI 10.1016/j.rmed.2006.12.011, PubMed 17317135

Aandstad A, Berntsen S, Hageberg R, Klasson-Heggebø L, Anderssen SA (2006)
A comparison of estimated maximal oxygen uptake in 9 and 10 year old schoolchildren in Tanzania and Norway
Br J Sports Med, 40 (4), 287-92
DOI 10.1136/bjsm.2005.020040, PubMed 16556780

Stensrud T, Berntsen S, Carlsen KH (2006)
Humidity influences exercise capacity in subjects with exercise-induced bronchoconstriction (EIB)
Respir Med, 100 (9), 1633-41
DOI 10.1016/j.rmed.2005.12.001, PubMed 16446080

Mysen M, Berntsen S, Nafstad P, Schild PG (2005)
Occupancy density and benefits of demand-controlled ventilation in Norwegian primary schools
Energy Build., 37 (12), 1234-1240
DOI 10.1016/j.enbuild.2005.01.003

Berntsen S, Stensrud T, Ingjer F, Vilberg A, Carlsen KH (2005)
Asthma in medium altitude--exercise-induced bronchoconstriction in hypobaric environment in subjects with asthma
Allergy, 60 (10), 1308-11
DOI 10.1111/j.1398-9995.2005.00914.x, PubMed 16134998

Instanes C, Hetland G, Berntsen S, Løvik M, Nafstad P (2005)
Allergens and endotoxin in settled dust from day-care centers and schools in Oslo, Norway
Indoor Air, 15 (5), 356-62
DOI 10.1111/j.1600-0668.2005.00381.x, PubMed 16108908

Review articles

H Fosstveit S, Lohne-Seiler H, Feron J, Lucas SJE, Ivarsson A, Berntsen S (2024)
The intensity paradox: A systematic review and meta-analysis of its impact on the cardiorespiratory fitness of older adults
Scand J Med Sci Sports, 34 (2), e14573
DOI 10.1111/sms.14573, PubMed 38389140

Bjørnarå HB, Westergren T, Sejersted E, Torstveit MK, Hansen BH, Berntsen S, Bere E (2021)
Does organized sports participation in childhood and adolescence positively influence health? A review of reviews
Prev Med Rep, 23, 101425
DOI 10.1016/j.pmedr.2021.101425, PubMed 34150481

Mackintosh KA, McNarry MA, Berntsen S, Steele J, Sejersted E, Westergren T (2021)
Physical activity and sedentary time in children and adolescents with asthma: A systematic review and meta-analysis
Scand J Med Sci Sports, 31 (6), 1183-1195
DOI 10.1111/sms.13937, PubMed 33576534

Stålesen J, Westergren T, Herman Hansen B, Berntsen S (2020)
A Mapping Review of Physical Activity Recordings Derived From Smartphone Accelerometers
J Phys Act Health, 17 (11), 1184-1192
DOI 10.1123/jpah.2020-0041, PubMed 33027761

Bjørke ACH, Sweegers MG, Buffart LM, Raastad T, Nygren P, Berntsen S (2019)
Which exercise prescriptions optimize V̇O₂ max during cancer treatment?-A systematic review and meta-analysis
Scand J Med Sci Sports, 29 (9), 1274-1287
DOI 10.1111/sms.13442, PubMed 31034665

Westergren T, Berntsen S, Ludvigsen MS, Aagaard H, Hall EOC, Ommundsen Y, Uhrenfeldt L, Fegran L (2017)
Relationship between physical activity level and psychosocial and socioeconomic factors and issues in children and adolescents with asthma: a scoping review
JBI Database System Rev Implement Rep, 15 (8), 2182-2222
DOI 10.11124/JBISRIR-2016-003308, PubMed 28800060

Westergren T, Berntsen S, Ludvigsen MS, Aagaard H, Hall EO, Ommundsen Y, Uhrenfeldt L, Fegran L (2017)
Relationship between physical activity level and psychosocial and socioeconomic factors and issues in children and adolescents with asthma: a scoping review protocol
JBI Database System Rev Implement Rep, 15 (2), 269-275
DOI 10.11124/JBISRIR-2016-002945, PubMed 28178020

Igelstrom H, Berntsen S, Demmelmaier I, Johansson B, Nordin K (2017)
Exercise during and after curative oncological treatment - a mapping review
Phys. Ther. Rev., 22 (3-4), 103-115
DOI 10.1080/10833196.2016.1262109

Other articles

Vistad I, Skorstad M, Demmelmaier I, Småstuen MC, Lindemann K, Wisløff T, van de Poll-Franse LV, Berntsen S (2021)
Lifestyle and Empowerment Techniques in Survivorship of Gynaecologic Oncology (LETSGO study): a study protocol for a multicentre longitudinal interventional study using mobile health technology and biobanking
BMJ Open, 11 (7), e050930
DOI 10.1136/bmjopen-2021-050930, PubMed 34253678

Berntsen S, Bere E, Torstveit MK (2015)
[Less sitting--better health?]
Tidsskr Nor Laegeforen, 135 (15), 1344-5
DOI 10.4045/tidsskr.15.0494, PubMed 26315232

Berntsen S, Bere E, Torstveit MK (2015)
[Physical activity without exercising?]
Tidsskr Nor Laegeforen, 135 (14), 1238-9
DOI 10.4045/tidsskr.15.0492, PubMed 26269061

Holtebekk ME, Berntsen S, Rasmussen M, Jahnsen RB (2013)
Physical activity and motor function in children and adolescents with neuromuscular disorders
Pediatr Phys Ther, 25 (4), 415-20
DOI 10.1097/PEP.0b013e3182a635f0, PubMed 23995671

Berntsen S (2013)
Measurement of energy expenditure by activity monitors: is it feasible to measure energy expenditure using tiny portable monitors?
Phys. Ther. Rev., 18 (4), 308-309
DOI 10.1179/1743288X13Y.0000000097

Book chapters

Berntsen S (2010)
Fysisk aktivitet, -form og astma
In Norsk idrettsmedisin, NIMF, Oslo, 25(2010)nr 1, S. 5-10
BIBSYS 101715986

Aandstad A, Berntsen S, Hageberg R, Heggebø LK, Anderssen S (2006)
A comparison of estimated maximal oxygen uptake in 9 and 10 year old schoolchildren in Tanzania and Norway
In British journal of sports medicine, BMJ Publishing Group, London, 40(2006)nr 4, S. 287-292
BIBSYS 060768088

Mysen M, Berntsen S, Nafstad P, Schild P (2005)
Occumpancy density and benefits of demand-controlled ventilation in Norwegian primary schools
In Energy and buildings, Elsevier Sequoia, Lausanne, 2005 nr 12, s. 1234-1240
BIBSYS 060238542

Theses

Berntsen S (2009)
Physical activity and aerobic fitness in childhood: associated with asthma?
Norwegian School of Sport Sciences, Oslo, 1 b. (flere pag.)
BIBSYS 092390862, ISBN 978-82-502-0421-8