Abstract des Autors

This article describes a new, short questionnaire on the amount of physical activity and its reliability and concurrent validity. The questions distinguish three parts: sports, other physical leisure activities and physical activities at work or at school. 111 volunteers filled in the questionnaire twice and afterwards they participated in an extensive interview on their physical activities. The results show that, except for the question on other leisure activities than sports, brief questions on the amount of physical activity have fair to good reliability. The (qualitative and quantitative) questions on sport activities are the only questions with good validity. It is concluded that the questionnaire can be used to assess differences between groups or changes over time. The questions on sports can also be used but to assess the (absolute) level of sport activities in a population. Verf.-Referat