Mobile real-time interventions in the work context - Snacking in the workplace

Mobile real-time interventions in the work context - Snacking in the workplace - SmartJob_snacking

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00010653

Enrollment

300

Registered

2016-07-21

Start date

2016-08-01

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Basic research with working people from the general population and primary prevention

Interventions

Group 1: Intervention group: Daily mental contrasting with implementation intentions regarding snacking and eating via smartphone (2 Weeks) + daily photo-based assessment of snacking via smartphones +

no mental contrasting with implementation intentions Group 3: Control group 2: Daily mobile assessment of work conditions and self-reported snacking and eating beahvior via smartphone-based surveys (2

no mental contrasting with implementation intentions

no photo-based assessment of snacking

is the same group as in Arm 3 of SmartJob_active (DRKS00010609)

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. 18 years at the beginning of the study 2. employed 3. has freely given informed consent

Exclusion criteria

Exclusion criteria: Participant is not able to use PC, tablet computer or smartphone without assistance, is not allowed to do so at work, or is unable to read German websites or fill in surveys; Participant is older than 65 years

Design outcomes

Primary

Measure	Time frame
(1) Attitude change with respect to snacking at work; in particular habit strength (snacking) (similar to Verhoeven et al., 2012), outcome expectancy (snacking) (Schwarzer & Renner, 2000), self-efficacy (snacking) (Schwarzer & Renner, 2000), healthy eating identity (Strachan & Brawley, 2008), assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed by respective self-report-scales (see references); (2) Behavior change in snacking at work, assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed by self-report questionnaires. (3) Evaluation of the intervention; assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed via self-developed questionnaire items. References: Schwarzer, R., & Renner, B. (2000). Social-cognitive predictors of health behavior: Action self-efficacy and coping self-efficacy. Health Psychology, 19, 487-495. Strachan, S. M., & Brawley, L. R. (2008). Reactions to a perceived challenge to identity: A focus on exercise and healthy eating. Journal of Health Psychology, 13, 575-588. Verhoeven, A. A. C., Adriaanse, M. A., Evers, C., & de Ridder, D. T. D. (2012). The power of habits: Unhealthy snacking behaviour is primarily predicted by habit strength. British Journal of Health Psychology, 17, 758-770.	—

Measure

Time frame

(1) Attitude change with respect to snacking at work; in particular habit strength (snacking) (similar to Verhoeven et al., 2012), outcome expectancy (snacking) (Schwarzer & Renner, 2000), self-efficacy (snacking) (Schwarzer & Renner, 2000), healthy eating identity (Strachan & Brawley, 2008), assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed by respective self-report-scales (see references); (2) Behavior change in snacking at work, assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed by self-report questionnaires. (3) Evaluation of the intervention; assessed immediately after the intervention and in a follow-up survey one year after the intervention; assessed via self-developed questionnaire items. References: Schwarzer, R., & Renner, B. (2000). Social-cognitive predictors of health behavior: Action self-efficacy and coping self-efficacy. Health Psychology, 19, 487-495. Strachan, S. M., & Brawley, L. R. (2008). Reactions to a perceived challenge to identity: A focus on exercise and healthy eating. Journal of Health Psychology, 13, 575-588. Verhoeven, A. A. C., Adriaanse, M. A., Evers, C., & de Ridder, D. T. D. (2012). The power of habits: Unhealthy snacking behaviour is primarily predicted by habit strength. British Journal of Health Psychology, 17, 758-770.

—

Secondary

Measure	Time frame
Body Mass Index, measured immediately after the intervention and in the follow-up-survey one year after the intervention. After the intervention and in the follow-up survey, we additionally assess the use of the health care system as well as consumption of alcohol and tobacco.	—

Countries

Germany

Contacts

Public ContactAlexander Pundt

Universität Mannheim; Lehrstuhl für Arbeits- und Organisationspsychologie

alexander.pundt@uni-mannheim.de0621 - 181 2116

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026