Office work usually involves prolonged sedentary behavior and health risks. The purpose of the present study was to investigate office workers' views on physical activity and how they believe their employers should work to reduce sedentary behavior. Theory of Planned Behavior and Self-Determination Theory were used as the theoretical framework. Seven qualitative interviews were conducted with office workers at a company in northern Sweden. The company has a strong culture of exercise and training as well as several health-promoting activities. Last year, a health survey indicated that many employees had back and neck problems. An inductive thematic analysis of the interviews showed that physical activity and movement are perceived as important for both physical and mental health. Factors such as habits and norms can constitute an obstacle to movement during the working day. If health interventions from the employer to counteract long periods of sitting are to be successful, they should be autonomous, performed jointly and easy to accomplish.