FoodSteps: lifestyle interventions at the workplace, the effects of adjustments of the building and canteen on physical activities and dietary habits

ISRCTN	ISRCTN33627624
DOI	https://doi.org/10.1186/ISRCTN33627624
Protocol serial number	N/A
Sponsor	Netherlands Organisation for Health Research and Development (ZonMw)
Funder	Netherlands Organisation for Health Research and Development (ZonMw)

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Prof Willem van Mechelen
Scientific

van der Boechorststraat 7
Amsterdam
1081 BT
Netherlands

Phone	+31 (0)20 4448206
Email	w.vanmechelen@vumc.nl

Primary study design	Interventional
Study design	Longitudinal, controlled study (baseline, 3 and 12-month follow-up)
Secondary study design	Cohort study
Scientific title	FoodSteps: lifestyle interventions at the workplace, the effects of adjustments of the building and canteen on physical activities and dietary habits
Study acronym	FoodSteps
Study objectives	To study the effectiveness of FoodSteps on cardiovascular risk indicators
Ethics approval(s)	Approved by the VU University Medical Center on 14/07/2003, reference number: 03/083
Health condition(s) or problem(s) studied	Office workers and cardiovascular risks
Intervention	The relatively modest intervention consisted of two parts: 1. A food part: designed to stimulate healthier food choices by means of product information about six food product groups (calorific value of a product was translated into the number of minutes of activity needed to burn these calories) 2. A steps part: focused on stimulating the use of the stairs by means of motivational prompts on staircases and on elevator doors
Intervention type	Other
Primary outcome measure(s)	1. Body composition (BMI, waist-hip circumference, skinfold thickness) 2. Serum cholesterol (total, high-density lipoprotein [HDL], low-density lipoprotein [LDL]) 3. Blood pressure 4. Objective stair-use 5. Self-reported physical activity 6. Self-reported fruit, vegetable and fat intake
Key secondary outcome measure(s)	Not provided at time of registration
Completion date	01/01/2006

Participant type(s)	Patient
Age group	Adult
Sex	All
Target sample size at registration	900
Total final enrolment	515
Key inclusion criteria	1. Office worker 2. Ability to climb stairs 3. Slightly overweight (self-reported body mass index [BMI] ≥23) 4. A work contract for at least the duration of the intervention
Key exclusion criteria	1. Subjects who were pregnant or became pregnant during the intervention year 2. Severe cardiovascular or musculoskeletal disorders
Date of first enrolment	01/01/2003
Date of final enrolment	01/01/2006

van der Boechorststraat 7

Amsterdam
1081 BT
Netherlands

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Results article	results	17/10/2006	08/01/2021	Yes	No
Study website	Study website	11/11/2025	11/11/2025	No	Yes

08/01/2021: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.