The untapped potential of workplace health promotion (WHP) in smaller companies and the promising approach to promote physical activity in the workplace requires application-oriented approaches. This study describes the participatory, theory-based development of a cross-company network with a multicomponent intervention for promoting physical activity in smaller companies. The BIG-Manual (from the "Movement as an Investment for Health" project, German-BIG) was the theoretical framework for developing the cross-company network. Qualitative and quantitative data sources were used to identify the requests and requirements of stakeholders (employees on site, local exercise providers, company representatives and network partners) regarding measures promoting physical activity and the cross-company network. The methods applied included two workshops (n = 13; n = 15), individual semi-structured interviews (n = 8) and a survey (n = 285). The analysis revealed that a large number of stakeholders must be taken into consideration for physical activity promotion in cross-company networks. Many similarities between the requests of employees and further stakeholders concerning a multicomponent intervention for promoting physical activity could be identified. Present gender-specific and physical activity-related differences show the importance of target group-specific intervention planning in the context of WHP. This study makes an important contribution for the development of future cross-company networks promoting physical activity and yields valuable information for the design of a multicomponent intervention promoting physical activity.
Keywords: cross-company networks; micro- and small sized companies; mixed-methods; multicomponent intervention; physical activity; workplace health promotion.