{
  "abstract": "Objectives Promoting regular physical activity (PA) is essential in cardiac rehabilitation; yet many patients exhibit low levels of PA. In January 2022, the Improving Physical Activity (IMPACT) trial, a randomised controlled trial at the University Hospital of Geneva, was launched to promote PA in cardiac patients by targeting automatic approach tendencies towards exercise-related stimuli through a cognitive bias modification (CBM) intervention. This article examines the limited acceptance of this intervention, identifies potential barriers and proposes strategies to improve future implementations.Design Retrospective evaluation of a preregistered clinical trial.Setting The intervention was conducted in a cardiac rehabilitation centre in Switzerland.Participants 68 cardiac rehabilitation patients (M age= 57.76, SD = 10.76 years, 87% male).Intervention Patients received 12 CBM sessions over six weeks, designed to target approach-avoidance tendencies to exercise-related stimuli and improve PA levels.Primary and secondary outcome measures Acceptance was assessed using behavioural (e.g., enrolment and engagement rates), cognitive (e.g., perceived effectiveness) and emotional (e.g., affective evaluation) indicators. The cognitive and emotional indicators were derived from verbal feedback documented by the research assistants based on patients’ reactions during the intervention period. These observations do not constitute qualitative research as defined by methodological standards; they were informal notes provided by research assistants during intervention delivery and were not collected or analysed using qualitative research methods.Results Of the 352 patients initially required, only 68 (19%) were enrolled. Among these 68, 63% completed the minimum number of CBM sessions and 25% completed accelerometer-based PA measures during the week following discharge. These behavioural indicators of low acceptance were associated with cognitive (e.g., scepticism about the task relevance and perceived effectiveness of the intervention) and emotional (e.g., feelings of boredom and disinterest) barriers.Conclusions The low engagement and acceptance observed in the IMPACT trial highlight several key barriers, such as perceived task irrelevance, task monotony and task boredom that undermine the acceptance and feasibility of this digital CBM intervention in cardiac rehabilitation. These findings emphasise the importance of designing patient-centred interventions, ensuring their seamless integration into clinical contexts and conducting qualitative research prior to implementation to anticipate potential barriers.Trial registeration number German clinical trials register (reference number: DRKS00023617).",
  "authors": [
    {
      "affiliations": [
        "Univ. Grenoble-Alpes, SENS, F-38000, Grenoble, France",
        "Univ. Lille, CNRS, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000, Lille, France"
      ],
      "name": "Layan Fessler"
    },
    {
      "affiliations": [
        "Université Bretagne Sud, LP3C - EA1285 - Laboratoire de Psychologie: Cognition, Comportement, Communication, Lorient, France"
      ],
      "name": "Silvio Maltagliati"
    },
    {
      "affiliations": [
        "Division of Cardiology, University Hospitals of Geneva, Geneva, Switzerland"
      ],
      "name": "Philippe Meyer"
    },
    {
      "affiliations": [
        "Division of Rheumatology, Department of Medicine, Geneva University Hospitals, Geneve, Switzerland"
      ],
      "name": "Axel Finckh"
    },
    {
      "affiliations": [
        "Population Health Laboratory, Department of Community Health, University of Fribourg, Fribourg, Switzerland"
      ],
      "name": "Stéphane Cullati"
    },
    {
      "affiliations": [
        "Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland",
        "Laboratory for the Study of Emotion Elicitation and Expression (E3Lab), Department of Psychology, University of Geneva, Geneva, Switzerland"
      ],
      "name": "David Sander"
    },
    {
      "affiliations": [
        "Department of Psychology, Saarland University, Saarbrücken, Germany"
      ],
      "name": "Malte Friese"
    },
    {
      "affiliations": [
        "Department of Psychology and Center for Urban Mental Health, University of Amsterdam, Amsterdam, The Netherlands"
      ],
      "name": "Reinout W Wiers"
    },
    {
      "affiliations": [
        "School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada"
      ],
      "name": "Ata Farajzadeh"
    },
    {
      "affiliations": [
        "Division of General Medical Rehabilitation, University Hospitals of Geneva, Geneva, Switzerland"
      ],
      "name": "Christophe Luthy"
    },
    {
      "affiliations": [
        "Univ. Grenoble-Alpes, SENS, F-38000, Grenoble, France"
      ],
      "name": "Philippe Sarrazin"
    },
    {
      "affiliations": [
        "Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland",
        "Laboratory for the Study of Emotion Elicitation and Expression (E3Lab), Department of Psychology, University of Geneva, Geneva, Switzerland",
        "Université Rennes, École normale supérieure de Rennes, VIPS2, F-35000, Rennes, France"
      ],
      "name": "Boris Cheval"
    }
  ],
  "title": "Anatomy of a failure: a retrospective evaluation of a cognitive bias modification intervention to promote physical activity in cardiac rehabilitation",
  "uid": "2ce383fc-f72a-586f-ae6f-db558c101c40"
}