Trial document




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  DRKS00028772

Trial Description

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Title

HASCI-1plus1 - Healthy, Active, and Sustainable Commuting Intervention with dyads

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Trial Acronym

HASCI-1plus1

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URL of the Trial

https://www.ewi-psy.fu-berlin.de/en/einrichtungen/arbeitsbereiche/gesund/forschung/HASCI-study/index.html

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Brief Summary in Lay Language

Those who walk, cycle, or use public transport (instead of the car) to get to work are improving their daily levels of physical activity and reduce their ecological footprint. Active commuting has the potential to contribute to the Sustainable Development Goals (SDGs) of the United Nations. How people get to work is often a highly automated behavior and something that people do over a long period of time. Hence, it is difficult to change and make long-term effective changes towards a more active lifestyle. Support from friends, family or colleagues could be particularly helpful in achieving new goals, but little research has been done in the area of active commuting. HASCI-1plus1 examines two people who know each other (e.g., friends, work colleagues) and who both want to commute more actively over a longer period of time.
This online study examines how active commuting behavior can be promoted, how support processes between two people look like, how support processes can be increased, and which correlates play a role for these processes. During the intervention, participants are asked to commute actively and therein work together with their respective study partner (“buddy”) for the following weeks. A booster intervention follows about 2 weeks after the intervention. Participants answer questionnaires several times a day (before commuting to work, after commuting to work, end of the day) across 12 weeks on weekdays (Monday to Friday) and wear an accelerometer. Experiences during the study are reflected in a final interview.

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Brief Summary in Scientific Language

Active commuting, that is, walking, cycling or using public transport to get to work (instead of a car), has the potential to contribute to health promotion (Raser et al., 2018; Patterson et al., 2020) and reduce people’s ecological footprint (Figueiredo et al., 2021; Johansson et al., 2017; Patz et al., 2016). Interventions for self-regulation in physical activity (e.g., action planning; Schwarzer, 2008) contribute to motivation (Knittle et al., 2018) and behavior change (Murray et al., 2017). The question of sustainability of behavioral interventions, i.e., how a short-term change in behavior can also be maintained in the long term, should be further investigated. In addition to individual factors the inclusion of a supporting person could be helpful for behavior change, since two people (so-called dyads) have more resources than an individual (Fitzsimmons et al., 2015). To date, dyadic interventions show heterogeneous evidence regarding their effectiveness in increasing physical activity (Carr et al., 2019).
By means of a dyadic behavior-related intervention, social exchange processes could be specifically promoted in order to strengthen the behavior change of both participants in the short and long term. Apart from individual techniques of behavior change (e.g., action planning), additional elements from motivational interviewing (Miller & Rollnick, 2013) are used in the HASCI-1plus1 intervention to promote helpful support.
This one-arm online intervention study aims to support inactive commuters and their study partners (so-called "buddies") in implementing and maintaining a new, more active commuting behavior and to promote mutual support processes in a dyadic intervention. Psychosocial and affective determinants will be examined using Ecological Momentary Assessment (EMA; Shiffman et al., 2008) and an observational N-of-1 study design (McDonald et. al, 2017). The sample will consist of at least nine dyads (i.e., 18 people) both of whom want to initiate active forms of commuting. With self-report surveys via smartphone app and objective data from an accelerometer assessed on weekdays (Monday to Friday), the participants are examined across a period of 12 weeks. The smartphone app's three daily EMA surveys occur (1) before commuting to work, (2) after commuting to work, and (3) at the end of the day. The intervention takes place online via video call on the 16th, 17th, or 18th day of the observation phase (randomized start day in line with a multiple baseline design). Interviewer-supported goal setting and planning of the new behavior (e.g., cycling to work) is supplemented by tips on helpful communication strategies and the initiation of dyadic support processes, which are jointly determined by the dyad. A booster intervention with the dyad takes place four weeks after study start. A final interview with each participant will take place 12 weeks after study start.

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Do you plan to share individual participant data with other researchers?

No

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Description IPD sharing plan:

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Organizational Data

  •   DRKS00028772
  •   2022/04/11
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  •   yes
  •   Approved
  •   007/2022, Ethikkommission der Freien Universität Berlin
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Secondary IDs

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Health Condition or Problem studied

  •   Promoting physical activity for the reduction of morbidity and mortality, and to increase well-being
  •   Physical inactivity
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Interventions/Observational Groups

  •   HASCI-1plus1 is a one-arm observational N-of-1 study (McDonald et al., 2017) with pre-intervention and post-intervention measurement phases. The intervention is dyadic and interviewer-supported. It entails the following elements.
    - Positive consequences of active commuting: Information about health consequences of increased physical activity, writing down the most important reason for their own motivation for a new commuting behavior.
    - Action planning and coping planning: Information on opportunities for more active commuting, personal goal setting for a new commuting behavior, creation of an action plan (e.g., when I go to work in the morning, then I take the bike) identification of barriers, creation of a coping plan (e.g., when I leave too late in the morning and need to take public transport, I get off the train two stations earlier on the way back and walk).
    - Promotion of helpful social support processes: Information on dyadic support and "helpful communication strategies" (motivational interviewing), joint writing down of support possibilities from Buddy A for Buddy B and from Buddy B for Buddy A.
    - Asking the participants to carry out the new commuting behavior and the agreed support for the remainder of the study period.
    A booster intervention only includes elements of the promotion of helpful social support processes: feedback on previous support, further information on "helpful communication", joint writing down of adapted support options from Buddy A to Buddy B and from Buddy B to Buddy A.
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Characteristics

  •   Interventional
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  •   Single arm study
  •   Open (masking not used)
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  •   Uncontrolled/Single arm
  •   Prevention
  •   Single (group)
  •   N/A
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Primary Outcome

The primary outcome are minutes of physical activity during commuting sessions; assessed via GeneActive movement sensors (accelerometer) across five days a week (Monday to Friday) over 12 weeks (i.e., over 60 days).

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Secondary Outcome

Secondary outcomes are also assessed longitudinally across weekdays (Mo-Fr) and over 12 weeks (i.e., over 60 days):
- Overall minutes in physical activity during the day; assessed via GeneActive movement sensors (accelerometer)
- Momentary affect (positive, negative, energy)
- Self-efficacy
- Action control
- Habit strength of old and new commuting behaviour, respectively

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Countries of Recruitment

  •   Germany
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Locations of Recruitment

  • other 
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Recruitment

  •   Planned
  •   2022/05/23
  •   18
  •   Monocenter trial
  •   National
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Inclusion Criteria

  •   Both, male and female
  •   18   Years
  •   no maximum age
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Additional Inclusion Criteria

- Have a buddy from the private sphere who is also eligible and with whom the person can collaborate towards active commuting in the study
- Usually, persons commute on all five working days (Mon-Fri)
- Usually, persons commute to work by car/scooter/public transport (i.e. bus, train, tram, ...)
- An intention to commute to work more actively ( i.e., walk or bike or use public transportation [instead of car] for commuting)
- Own a smartphone with internet capacity
- Be at least 18 years old
- Have the same workplace across the study period (12 weeks)
- Have sufficient vision and German language skills to understand and complete the study materials

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Exclusion Criteria

/

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Addresses

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    • Freie Universität Berlin, Fachbereich Erziehungswissenschaft und Psychologie, Arbeitsbereich Gesundheitspsychologie
    • Mr.  Dr.  Jan  Keller 
    • Habelschwerdter Allee 45
    • 14195  Berlin
    • Germany
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    • MSB Medical School Berlin, Hochschule für Gesundheit und Medizin
    • Ms.  Lea  Wilhelm 
    • Rüdesheimer Str. 50
    • 14197  Berlin
    • Germany
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    • MSB Medical School Berlin, Hochschule für Gesundheit und Medizin
    • Ms.  Lea  Wilhelm 
    • Rüdesheimer Str. 50
    • 14197  Berlin
    • Germany
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Sources of Monetary or Material Support

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    • Fachbereich Erziehungswissenschaften und Psychologie, Arbeitsbereich Gesundheitspsychologie
    • Ms.  Prof. Dr.  Nina  Knoll 
    • Habelschwerdter Allee 45
    • 14195  Berlin
    • Germany
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    • MSB Medical School Berlin, Hochschule für Gesundheit und Medizin
    • Ms.  Prof. Dr.  Lena  Fleig 
    • Rüdesheimer Str. 50
    • 14197  Berlin
    • Germany
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Status

  •   Recruiting planned
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Trial Publications, Results and other Documents

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