Jonas Johansson


Senior Researcher

Job description

Senior Researcher employed at the Department of Community Medicine, UiT. Jonas main research focus is using epidemiological research data from the Tromsø Study to study ageing processes, muscle strength, physical function, and the impact of physical activity. He currently leads the scientific committee for the upcoming Tromsø8 data collection wave planned to take place in 2025-2026. He also works with the RCN-funded RESTART project, a randomized controlled trial which will investigate how a complex lifestyle intervention can improve and maintain the health status of older adults 60+. His background is in exercise physiology and he completed a PhD in Public Health in 2018.

Jonas is a member of the Epidemiology of chronic diseases research group and an associate member of the Sport, physical activity, and health research group


  • Ingebjørg Tronstad, Mari Hoff, Julie Horn, Sigrid Anna Aalberg Vikjord, Vibeke Videm, Jonas Lars Johansson et al.:
    Rheumatoid arthritis, disease-modifying antirheumatic drugs and risk of major osteoporotic fracture: prospective data from the HUNT Study, Norway
    RMD Open 2024 ARKIV / DOI
  • Erlend Johannessen, Jonas Johansson, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, André Henriksen :
    Collecting health-related research data using consumer-based wireless smart scales
    International Journal of Medical Informatics 2023 ARKIV / DOI
  • Jonas Lars Johansson, Anne Sameline Grimsgaard, Bjørn Heine Strand, Avan Aihie Sayer, Rachel Cooper :
    Comparing associations of handgrip strength and chair stand performance with all-cause mortality—implications for defining probable sarcopenia: the Tromsø Study 2015–2020
    BMC Medicine 2023 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Bente Morseth, Bjørge Hermann Hansen, Jostein Steene-Johannessen, Jonas Lars Johansson et al.:
    Device-measured physical activity, sedentary time, and risk of all-cause mortality: an individual participant data analysis of four prospective cohort studies
    British Journal of Sports Medicine 2023 ARKIV / DOI
  • Shreeshti Uchai, Lene Frost Andersen, Jonas Johansson, Laila Arnesdatter Hopstock, Anette Hjartåker :
    Dual-Energy X-Ray Absorptiometry Derived Adiposity Measures and Pre-Frailty/Frailty among Norwegian Adults: The Tromsø Study 2007–2015
    The Journal of Nutrition, Health & Aging 2023 ARKIV / DOI
  • Erlend Johannessen, André Henriksen, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, Jonas Johansson :
    Ubiquitous digital health-related data: clarification of concepts
    2022 ARKIV / DOI
  • Saija Mikkilä, Jonas Johansson, Anna Hava Nordström, Peter Nordström, Nina Emaus, Bjørn Helge Handegård et al.:
    A 15-year follow-up study of hip bone mineral density and associations with leisure time physical activity. The Tromsø Study 2001-2016
    PLOS ONE 2022 ARKIV / DOI
  • Jonas Johansson, Nina Emaus, Bastiaan Geelhoed, Edvard Hamnvik Sagelv, Bente Morseth :
    Vertebral Fractures Assessed by Dual-Energy X-Ray Absorptiometry and All-Cause Mortality: The Tromsø Study, 2007-2020
    American Journal of Epidemiology 2022 ARKIV / DOI
  • Trygve Sigvart Deraas, Laila Arnesdatter Hopstock, André Henriksen, Bente Morseth, Anne-Sofie Sand, Inger Njølstad et al.:
    Complex lifestyle intervention among inactive older adults with elevated cardiovascular disease risk and obesity: a mixed-method, single-arm feasibility study for RESTART—a randomized controlled trial
    BMC Pilot and Feasibility Studies 2021 ARKIV / DOI
  • Jonas Johansson, Bente Morseth, David Scott, Bjørn Heine Strand, Laila Arnesdatter Hopstock, Sameline Grimsgaard :
    Moderate-to-vigorous physical activity modifies the relationship between sedentary time and sarcopenia: the Tromsø Study 2015–2016
    Journal of Cachexia, Sarcopenia and Muscle 01. June 2021 ARKIV / DOI
  • Marie Wasmuth Lundblad, Bjarne Koster Jacobsen, Jonas Johansson, Emanuella de Lucia Rolfe, Sameline Grimsgaard, Laila Arnesdatter Hopstock :
    Reference Values for DXA-Derived Visceral Adipose Tissue in Adults 40 Years and Older from a European Population: The Tromsø Study 2015–2016
    Journal of Obesity 2021 ARKIV / DOI
  • Marie Wasmuth Lundblad, Bjarne Koster Jacobsen, Jonas Johansson, Sameline Grimsgaard, Lene Frost Andersen, Laila Arnesdatter Hopstock :
    Anthropometric measures are satisfactory substitutes for the DXA‐derived visceral adipose tissue in the association with cardiometabolic risk—The Tromsø Study 2015–2016
    Obesity Science & Practice 2021 ARKIV / DOI
  • Marie Wasmuth Lundblad, Jonas Johansson, Bjarne Koster Jacobsen, Sameline Grimsgaard, Lene Frost Andersen, Tom Wilsgaard et al.:
    Secular and longitudinal trends in body composition: The Tromsø Study, 2001 to 2016
    Obesity 2021 ARKIV / DOI
  • Niklas Sörlén, Andreas Hult, Peter Nordström, Anna Hava Nordström, Jonas Johansson :
    Short-term balance training and acute effects on postural sway in balance-deficient older adults: a randomized controlled trial
    BMC sports science, medicine and rehabilitation 2021 ARKIV / DOI
  • Rachel Cooper, Vladimir M. Shkolnikov, Alexander Kudryavtsev, Sofia Malyutina, Andrew Ryabikov, Laila Arnesdatter Hopstock et al.:
    Between-study differences in grip strength: a comparison of Norwegian and Russian adults aged 40–69 years
    Journal of Cachexia, Sarcopenia and Muscle 2021 ARKIV / DOI
  • Anna Hava Nordström, Jonathan Bergman, Sabine Björk, Bo Carlberg, Jonas Johansson, Andreas Hult et al.:
    A multiple risk factor program is associated with decreased risk of cardiovascular disease in 70-year-olds: A cohort study from Sweden
    PLoS Medicine 2020 ARKIV / DOI
  • David Scott, Jonas Johansson, Peter R. Ebeling, Peter Nordström, Anna Hava Nordström :
    Adiposity Without Obesity: Associations with Osteoporosis, Sarcopenia, and Falls in the Healthy Ageing Initiative Cohort Study
    Obesity 2020 ARKIV / DOI
  • André Henriksen, Jonas Johansson, Gunnar Hartvigsen, Sameline Grimsgaard, Laila Arnesdatter Hopstock :
    Measuring Physical Activity Using Triaxial Wrist Worn Polar Activity Trackers: A Systematic Review
    International Journal of Exercise Science 2020 FULLTEKST / ARKIV
  • David Scott, Jonas Johansson, Anoohya Gandham, Peter R Ebeling, Peter Nordström, Anna Hava Nordström :
    Associations of accelerometer-determined physical activity and sedentary behavior with sarcopenia and incident falls over 12 months in community-dwelling Swedish older adults
    Journal of Sport and Health Science 2020 ARKIV / DOI
  • Jonas Johansson, Bjørn Heine Strand, Bente Morseth, Laila Arnesdatter Hopstock, Sameline Grimsgaard :
    Differences in sarcopenia prevalence between upper-body and lower-body based EWGSOP2 muscle strength criteria: the Tromsø study 2015–2016
    BMC Geriatrics 2020 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Jonas Johansson, Bjørge Hermann Hansen, Brage Søren, Alexander Horsch et al.:
    Criterion validity of two physical activity and one sedentary time questionnaire against accelerometry in a large cohort of adults and older adults
    BMJ Open sport & exercise medicine 2020 ARKIV / DOI
  • Jonas Johansson, Ewa Jarocka, Göran Westling, Anna Hava Nordström, Peter Nordström :
    Predicting incident falls: relationship between postural sway and limits of stability in older adults
    Human Movement Science 2019 DOI
  • David Scott, Jonas Johansson, Lachlan McMillan, Peter R Ebeling, Peter Nordström, Anna Hava Nordström :
    Associations of Sarcopenia and Its Components with Bone Structure and Incident Falls in Swedish Older Adults
    Calcified Tissue International 2019 ARKIV / DOI
  • David Scott, Jonas Johansson, Lachlan McMillan, Peter R Ebeling, Anna Hava Nordström, Peter Nordström :
    Mid-calf skeletal muscle density and its associations with physical activity, bone health and incident 12-month falls in older adults: The Healthy Ageing Initiative
    Bone 2019 ARKIV / DOI
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Sigurd Pedersen, Søren Brage, Bjørge Hermann Hansen, Jonas Johansson et al.:
    Physical activity levels in adults and elderly from triaxial and uniaxial accelerometry. The Tromsø Study
    PLOS ONE 03. December 2019 ARKIV / DOI
  • Jonas Johansson, Andreas Hult, Bente Morseth, Anna Hava Nordström, Peter Nordström :
    Self-reported protein intake and properties of bone in community-dwelling older individuals.
    Archives of Osteoporosis 2018 DOI
  • Erlend Johannessen, André Henriksen, Eirik Årsand, Alexander Horsch, Jonas Johansson, Gunnar Hartvigsen :
    Health Research Requires Efficient Platforms for Data Collection from Personal Devices
    Studies in Health Technology and Informatics 2023 ARKIV / DOI
  • Jonas Johansson, Erik Krogseth Heimdal :
    Ingeborg Thue (89) satt i en stol nesten hele dagen. Metoden som endret livet hennes, hylles av eksperter.
    23. July 2023
  • Anne Sameline Grimsgaard, Trygve Sigvart Deraas, Laila Arnesdatter Hopstock, André Henriksen, Jonas Lars Johansson :
    RESTART skal styrke helsen til eldre voksne med høy sykdomsrisiko
    2023
  • Anne Sameline Grimsgaard, Jonas Lars Johansson :
    Vi rigger oss for nytt «tokt»:​ Tromsøundersøkelsen planlegger sin 8. datainnsamling i​ 2025. ​
    2023
  • Jonas Lars Johansson, Anne Sameline Grimsgaard :
    RESTART vil styrke helsen blant eldre voksne med høy sykdomsrisiko
    2023
  • Shreeshti Uchai, Lene Frost Andersen, Jonas Lars Johansson, Laila Arnesdatter Hopstock, Anette Hjartåker :
    Dual-Energy X-Ray Absorptiometry Derived Adiposity Measures and Pre-Frailty/Frailty among Norwegian Adults: The Tromsø Study 2007–2015
    2023
  • Shreeshti Uchai, Lene Frost Andersen, Jonas Lars Johansson, Laila Arnesdatter Hopstock, Anette Hjartåker :
    Dual-Energy X-Ray Absorptiometry Derived Adiposity Measures and Pre-Frailty/Frailty among Norwegian Adults: The Tromsø Study 2007–2015
    2023
  • Jonas Johansson, Sameline Grimsgaard, Silje Dyregrov :
    Fire myter om trening og eldre
    16. September 2022
  • Erlend Johannessen, André Henriksen, Gunnar Hartvigsen, Alexander Horsch, Eirik Årsand, Jonas Johansson :
    Ubiquitous digital health-related data: clarification of concepts
    2022
  • Marie Wasmuth Lundblad, Laila Arnesdatter Hopstock, Jonas Johansson :
    Kan du måle hvor sunn du er?
    UiT Forskerhjørnet 2022
  • Edvard Hamnvik Sagelv, Laila Arnesdatter Hopstock, Bente Morseth, Bjørge Hermann Hansen, Jostein Steene-Johannessen, Sigmund Alfred Anderssen et al.:
    Physical activity and mortality: Effect modification by sedentary time. An individual participant data analysis of four cohorts with accelerometry measured physical activity
    2022
  • Jonas Johansson, Nina Emaus, Bastiaan Geelhoed, Edvard Hamnvik Sagelv, Bente Morseth :
    Associations between vertebral fracture and mortality. The Tromsø Study 2007-2020
    2021
  • Jonas Johansson :
    Prevalence of sarcopenia and association with objectively measured physical activity: The Tromsø Study
    2021
  • Jonas Johansson :
    Idrettsforskning podcast : Eldre og styrketrening - episode 48
    11. October 2021
  • Jonas Johansson, Bente Morseth, David Scott, Bjørn Heine Strand, Laila Arnesdatter Hopstock, Sameline Grimsgaard :
    Moderate-to-vigorous physical activity modifies the relationship between sedentary time and sarcopenia: The Tromsø Study 2015-2016
    2021
  • Jonas Johansson, Bjørn Heine Strand, Bente Morseth, Laila Arnesdatter Hopstock, Sameline Grimsgaard :
    Prevalence of sarcopenia in a Northern Scandinavian population according to updated EWGSOP2 thresholds for upper-body or lower-body strength: The Tromsø Study
    2020
  • Marie Wasmuth Lundblad, Bjarne K. Jacobsen, Sameline Grimsgaard, Lene Frost Andersen, Monica Hauger Carlsen, Jonas Johansson et al.:
    Total energy and macronutrient intake according to body mass index, fat mass index and body fat percentage: The seventh Tromsø Study 2015-16
    2019
  • André Henriksen, Sameline Grimsgaard, Laila Arnesdatter Hopstock, Jonas Johansson, Trygve Sigvart Deraas :
    One year of physical activity tracking using a consumer pulse watch: Wear time and device accuracy in a 6-month complex lifestyle intervention feasibility study
    2019
  • Trygve Sigvart Deraas, Bente Morseth, Jonas Johansson, André Henriksen, Gøran Knaplund, Laila Arnesdatter Hopstock et al.:
    Effects of a 22-week strength and endurance training intervention in sedentary, obese people with increased cardiovascular disease risk: Lessons learned from a complex feasibility study
    2019
  • Jonas Johansson, André Henriksen, Gøran Knaplund, Bente Morseth, Laila Arnesdatter Hopstock, Trygve Sigvart Deraas :
    Protocol adherence during cycling-based interval exercise using Polar M430 physical activity trackers for self-monitoring of heart rate: Lessons learned from a 6-month feasibility study
    2019
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Jonas Johansson, Søren Brage, Alexander Horsch, Laila Arnesdatter Hopstock et al.:
    Comparing a short physical activity questionnaire with accelerometer measures as criterion validity: The Tromsø Study
    2019
  • Edvard Hamnvik Sagelv, Ulf Ekelund, Jonas Johansson, Boye Welde, Sameline Grimsgaard, Nina Emaus et al.:
    Measures of adiposity and its association to physical activity: The Tromsø Study
    2019
  • Vilde Lehne Michalsen, Jonas Johansson, Nils Abel Aars :
    Det er ikke ett fett hvor fettet lagres
    https://blogg.uit.no/helsefak/ 2019
  • Jonas Johansson :
    The Healthy Ageing Initiative - Prevention of Falls and Fractures
    2018

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    Research interests

    • Sarcopenia and physical functioning
    • Body composition
    • Physical activity assessment
    • Falls/fractures risk assessment and prediction
    • Osteoporosis and bone metabolism
    • Healthy ageing

    Teaching

    Supervises Masters' theses at the Master of public health program, Master in clinical nutrition program, and the Master in medicine program. Lecturer commissions at the Bachelor in sports science and Clinical nutrition educational programs. Have since 2012 supervised 12 master students in sports medicine, clinical nutrition, public health, and medicine. 

    PhD supervision: 

    2018-2021: Assistant supervisor for Marie W Lundblad. Doctoral thesis title: The obesity epidemic; population levels of visceral adipose tissue and trends in body composition - insights from The Tromsø Study. 

    2021-2026: Main supervisor for Elisabeth Dahl Martinsen. Preliminary doctoral thesis title: Mental health trends among older adults and association with lifestyle factors and non-communicable disease

    2021-2024: Assistant supervisor for Erlend Johannesen. Preliminary doctoral thesis title: Collecting health data using wearable sensors and smartphones: towards establishing a digital twin concept

    2021-2025: Assistant supervisor for Ingebjørg Tronstad. Preliminary doctoral thesis title: Rheumatoid arthritis, bone mineral density and fractures - The HUNT and Tromsø Studies 2001-2019

    2021-2025: Assistant supervisor for Rebecca Hetland. Preliminary doctoral thesis title: Socioeconomic gradients in non-communicable disease - biological and lifestyle risk factors: The Tromsø Study

    2023-2027: Assistant supervisor for Tord Hammer. Preliminary doctoral thesis title: The influence of physical activity on bone mass from adolescence to young adulthood: The Fit Futures Study

     




    CV

    Academic background:

    2008: Bachelor in Sports Science, UmU, Sweden

    2010: Master in Sports Medicine, UmU, Sweden

    2010-2011: Research assistant, Sports Medicine Unit, UmU, Sweden

    2010-2011: Lecturer in exercise physiology, Sports Medicine Unit, UmU, Sweden

    2012-2018: PhD candidate, UmU, Sweden

    2015-2018: Project coordinator, Region Västerbotten, Sweden

    2018: PhD in Public Health, UmU, Sweden

    2018-2019: Researcher, UiT, Norway

    2019-2022: Postdoc, UiT, Norway

    2022->: Senior Researcher, UiT, Norway

     

    Academic commissions:

    2017: External expert reviewer for quality control and grading of evidence regarding physical activity treatment recommendations in Healthcare – The National Board of Health and Welfare, Sweden

    2020: Committee Leader (3rd opponent) - PhD evaluation and defense (Candidate: Marisa Da Silva) at UiT, Norway

    2022: 2nd opponent - PhD evaluation and defense (Candidate: Hilde Bårdstu) at NTNU, Norway

    2023: 2nd opponent - PhD evaluation and defense (Candidate: Tiril Tøien) at Molde University College, Norway

    2021-2023: 3xExternal examiner for Master theses at NTNU and Western Norway University of Applied Sciences, Norway