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Health Effects of a 12-Week Web-Based Lifestyle Intervention for Physically Inactive and Overweight or Obese Adults: Study Protocol of Two Randomized Controlled Clinical Trials

Author

Listed:
  • Judith Brame

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany)

  • Jan Kohl

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany)

  • Ramona Wurst

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany)

  • Reinhard Fuchs

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany)

  • Iris Tinsel

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Phillip Maiwald

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Urs Fichtner

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Christoph Armbruster

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Martina Bischoff

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Erik Farin-Glattacker

    (Section of Health Care Research and Rehabilitation Research (SEVERA), Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany)

  • Peter Lindinger

    (Scientific Working Group in Smoking Cessation (WAT) e.V., Department of Psychiatry and Psychotherapy, University Hospital Tübingen, 72076 Tübingen, Germany)

  • Rainer Bredenkamp

    (Clinical Trials Unit UMG, University Medical Center Göttingen, 37075 Göttingen, Germany)

  • Albert Gollhofer

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany)

  • Daniel König

    (Department of Sport and Sport Science (DoSS), University of Freiburg, 79117 Freiburg, Germany
    Department of Sport Science, Institute for Nutrition, Sports and Health, University of Vienna, 1150 Vienna, Austria
    Department of Nutritional Sciences, Institute for Nutrition, Sports and Health, University of Vienna, 1090 Vienna, Austria)

Abstract

Web-based lifestyle interventions have attracted considerable research interest. Available evidence on such interventions suggests health-promoting effects, but further research is needed. Therefore, this study aims to investigate short-, medium-, and long-term health effects of a web-based health program (“TK-HealthCoach”, TK-HC) offered by a national statutory health insurance fund (Techniker Krankenkasse, TK). The study comprises two randomized controlled clinical trials to evaluate the health goals “Increasing Fitness” (F clin ) and “Losing and Maintaining Weight” (W clin ). A total of n = 186 physically inactive (F clin ) and n = 150 overweight or obese (W clin ) adults will be randomly assigned to a 12-week interactive (TK-HC) or non-interactive web-based health program using permuted block randomization with a 1:1 allocation ratio. Primary outcomes include cardiorespiratory fitness (F clin ) and body weight (W clin ). Secondary outcomes comprise musculoskeletal fitness (F clin ), physical activity and dietary behavior, anthropometry, blood pressure, blood levels, and vascular health (F clin , W clin ). All outcomes will be measured before and after the 12-week intervention and after a 6- and 12-month follow-up. Additionally, usage behavior data on the health programs will be assessed. Linear mixed models (LMMs) will be used for statistical analysis. Findings of this study will expand the available evidence on web-based lifestyle interventions.

Suggested Citation

  • Judith Brame & Jan Kohl & Ramona Wurst & Reinhard Fuchs & Iris Tinsel & Phillip Maiwald & Urs Fichtner & Christoph Armbruster & Martina Bischoff & Erik Farin-Glattacker & Peter Lindinger & Rainer Bred, 2022. "Health Effects of a 12-Week Web-Based Lifestyle Intervention for Physically Inactive and Overweight or Obese Adults: Study Protocol of Two Randomized Controlled Clinical Trials," IJERPH, MDPI, vol. 19(3), pages 1-21, January.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:3:p:1393-:d:734961
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    References listed on IDEAS

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    1. Carmen Galani & Heinz Schneider, 2007. "Prevention and treatment of obesity with lifestyle interventions: review and meta-analysis," International Journal of Public Health, Springer;Swiss School of Public Health (SSPH+), vol. 52(6), pages 348-359, December.
    2. Lukas Schwingshackl & Georg Hoffmann & Tamara Kalle-Uhlmann & Maria Arregui & Brian Buijsse & Heiner Boeing, 2015. "Fruit and Vegetable Consumption and Changes in Anthropometric Variables in Adult Populations: A Systematic Review and Meta-Analysis of Prospective Cohort Studies," PLOS ONE, Public Library of Science, vol. 10(10), pages 1-19, October.
    3. Gaeun Kim & Ji-Soo Lee & Soo-Kyoung Lee, 2021. "A Technology-Mediated Interventional Approach to the Prevention of Metabolic Syndrome: A Systematic Review and Meta-Analysis," IJERPH, MDPI, vol. 18(2), pages 1-21, January.
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    1. Urs Alexander Fichtner & Christoph Armbruster & Martina Bischoff & Phillip Maiwald & Matthias Sehlbrede & Iris Tinsel & Judith Brame & Jan Kohl & Daniel König & Reinhard Fuchs & Ramona Wurst & Erik Fa, 2022. "Evaluation of an Interactive Web-Based Health Program for Weight Loss—A Randomized Controlled Trial," IJERPH, MDPI, vol. 19(22), pages 1-16, November.

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