Condition category
Nutritional, Metabolic, Endocrine
Date applied
13/08/2009
Date assigned
27/10/2009
Last edited
06/09/2011
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

Contact information

Type

Scientific

Primary contact

Mrs Saskia Kelders

ORCID ID

Contact details

Faculty of Behavioural Sciences
Department of PCHR
Ci H403
P.O. Box 217
Enschede
7500AE
Netherlands

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

The effects of an interactive web-based intervention to promote healthy behaviour: a randomised single-blind study with a waiting list control condition

Acronym

Study hypothesis

Respondents who receive access to the interactive web-based intervention will show more improvement in healthy behaviour (nutrition and exercise) than respondents in the waiting-list condition after the intervention period of 12 weeks.

Ethics approval

No ethics approval needed in the Netherlands for this trial on online prevention.

Study design

Randomised single blind controlled study

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Quality of life

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Healthy nutrition and exercise habits

Intervention

Intervention:
Access to interactive web-based application: participants can create a personal account at the intervention website and can use the application as often as they like to for the intervention period of 12 weeks.

Control:
Waiting-list: participants receive a newsletter (once every 3 weeks) with general information (no information on healthy behaviour). After the intervention period of 12 weeks, they receive access to the application.

Intervention type

Other

Phase

Not Applicable

Drug names

Primary outcome measures

1. Nutrition behaviour, measured using 14 item questionnaire of the Netherlands Nutrition Centre at baseline and after 12 weeks
2. Exercise behaviour, measured according to the Dutch Norm for Healthy Exercise (Nederlandse Norm Gezond Bewegen), using a 4-item questionnaire at baseline and after 12 weeks

Secondary outcome measures

1. Self-efficacy nutrition and exercise, both measured using a 3-item questionnaire (5 point Likert-scale) at baseline and after 12 weeks
2. Knowledge healthy nutrition habits, measured using a 10-item true/false questionnaire based on the Netherlands classification model at baseline and after 12 weeks
3. Knowledge healthy exercise habits, measured using a 10-item true/false questionnaire based on the Dutch norm for healthy exercise at baseline and after 12 weeks
4. Attitude healthy behaviour, measured using a 5-point Likert-scale questionnaire with 5 items on health consciousness attitude and 6 items on health beliefs attitude at baseline and after 12 weeks
5. Stage of change healthy nutrition and exercise, both measured using one item with five distinct answering categories at baseline and after 12 weeks

Overall trial start date

01/12/2008

Overall trial end date

01/06/2009

Reason abandoned

Eexercise & healthy eating behaviours

Eligibility

Participant inclusion criteria

1. Dutch-speaking
2. Interested in using online lifestyle intervention
3. Access to PC with internet access
4. Aged 18 years and over, either sex

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

300

Participant exclusion criteria

Body mass index (BMI) less than 18 or more than 28 kg/m^2

Recruitment start date

01/12/2008

Recruitment end date

01/06/2009

Locations

Countries of recruitment

Belgium, Netherlands

Trial participating centre

Faculty of Behavioural Sciences
Enschede
7500AE
Netherlands

Sponsor information

Organisation

University of Twente (Netherlands)

Sponsor details

P.O Box 217
Enschede
7500AE
Netherlands

Sponsor type

University/education

Website

http://www.utwente.nl/en/

Funders

Funder type

Hospital/treatment centre

Funder name

Netherlands Nutrition Centre (Netherlands)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

2011 results in http://www.ncbi.nlm.nih.gov/pubmed/21493191

Publication citations

  1. Results

    Kelders SM, Van Gemert-Pijnen JE, Werkman A, Nijland N, Seydel ER, Effectiveness of a Web-based intervention aimed at healthy dietary and physical activity behavior: a randomized controlled trial about users and usage., J. Med. Internet Res., 2011, 13, 2, e32, doi: 10.2196/jmir.1624.

Additional files

Editorial Notes