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

Judith Brame, Jan Kohl, Ramona Wurst, Reinhard Fuchs, Iris Tinsel, Phillip Maiwald, Urs Fichtner, Christoph Armbruster, Martina Bischoff, Erik Farin-Glattacker, Peter Lindinger, Rainer Bredenkamp, Albert Gollhofer and Daniel König
Additional contact information
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

IJERPH, 2022, vol. 19, issue 3, 1-21

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.

Keywords: lifestyle intervention; health program; web-based; physical activity; physical fitness; overweight; obesity; weight loss; health effects (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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