Table 3.

Personal and environmental determinants, theoretical methods, practical strategies and tools identified for increasing the level of physical activity among employees (program objective 1).

Determinant	Theoretical method	Practical strategy	Tools
Knowledge	Tailored feedback	Provide verbal tailored feedback on national recommendations, benefits and possibilities	Stage matched feedback during counseling. Information in print materials and in diary.
Awareness	Personalized risk Self-monitoring	Provide verbal personal and normative feedback Facilitate and stimulate written monitoring of own behavior	Stage matched feedback during counseling. Risk communication chart. Balance@Work toolkit consisting of: a. Waist circumference measuring tape with a coloring scheme that indicates a healthy waist circumference. b. Pedometer. c. Diary containing information and logs to keep track of nutrition, physical activity and steps per day. d. Print materials on physical activity and nutrition.
Attitude	Decisional balance Re-evaluation of beliefs	Discuss the decisional balance Provide positive feedback on changes in attitude and discuss irrational thoughts	Stage matched feedback during counseling. Agenda setting chart in diary. Scales assessing importance, confidence and willingness to change. Decision matrix in diary.
Perceived behavioral control	Reinforcement Goal setting	Increase confidence by providing positive feedback and discuss difficult situations Invite to formulate implementation intentions	Stage matched feedback during counseling. Evaluation of realistic short and long term goals, reason for goals, barriers and solutions in diary.
Habit	Active learning Goal setting Rewarding	Formulate action and coping plans Invite to formulate implementation intentions Invite to formulate rewards	Stage matched feedback during counseling. Evaluation of realistic short and long term goals, reason for goals, barriers and solutions, and rewards for reached goals in diary.
Skills	Active learning Reinforcement	Encourage to formulate implementation intentions and train relapse prevention skills Provide positive feedback on skills	Stage matched feedback during counseling. Evaluation of current skills and needed skills.
Subjective norm	Mobilizing social support Skills building to reduce social pressure	Invite to formulate who can provide support Encourage to train relapse prevention skills	Stage matched feedback during counseling. Evaluation of who can provide social support in diary.
Availability	Environmental changes	Encourage to formulate environmental changes that facilitate a healthy work environment	Information in print materials. Environment scan consisting of: a checklist which provides insight in opportunities to create a healthier work environment. Examples of items are: are bike sheds and change facilities present? is the cafeteria adapted to stimulate healthy nutrition? is a rewarding system present? Feasibility and barriers for changing the environment can be scored together with the employer, as well as a start and evaluation date.
Management commitment and support	Mobilizing management support Rewarding	Encourage management participation Provide incentives
Social support	Mobilizing social support from collegues	Encourage participation of collegues
Company policy and costs	Mobilizing management to provide policy that encourages a healthy work environment	Encourage management and the workers' representative council to facilitate changes