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Cecilie Th⊘gersen-Ntoumani Nikos Ntoumanis Nikitas Nikitaras 《Journal of sports sciences》2013,31(12):1341-1350
Abstract The main purpose of this study was to examine typologies of non-exercisers based on reasons for physical inactivity and conditions reported to be necessary to change exercise behaviour. These typologies were then compared on psychological variables of interest and exercise history. Questionnaires were distributed to Greek older adults aged 60 and above who were recruited from social clubs and city cafés. Only individuals engaging in no regular exercise were recruited (n = 188). The results of hierarchical and k-means cluster analyses revealed two clusters for males (“approachable” and “unconvinced”) and three for females (“unconcerned”, “approachable”, and “unconvinced”). The clusters differed significantly on psychological variables not used in the cluster solution. Exercise history distinguished between clusters only among males. The results reveal that physically inactive older adults are not a homogeneous group of individuals. Implementers of physical activity interventions should probably use a range of strategies that take into consideration that some sedentary older adults are more amenable to consider taking up exercise than others. 相似文献
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The main purpose of this study was to examine typologies of non-exercisers based on reasons for physical inactivity and conditions reported to be necessary to change exercise behaviour. These typologies were then compared on psychological variables of interest and exercise history. Questionnaires were distributed to Greek older adults aged 60 and above who were recruited from social clubs and city cafés. Only individuals engaging in no regular exercise were recruited (n = 188). The results of hierarchical and k-means cluster analyses revealed two clusters for males ("approachable" and "unconvinced") and three for females ("unconcerned", "approachable", and "unconvinced"). The clusters differed significantly on psychological variables not used in the cluster solution. Exercise history distinguished between clusters only among males. The results reveal that physically inactive older adults are not a homogeneous group of individuals. Implementers of physical activity interventions should probably use a range of strategies that take into consideration that some sedentary older adults are more amenable to consider taking up exercise than others. 相似文献
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This article describes the architecture of a generic platform for building distributed locational systems over stand-alone applications. The proposed platform integrates ideas and technology from areas such as distributed and parallel databases, transaction processing systems, and workflow management. The main contribution of this research effort is to propose a “kernel” locational system providing the essentials for distributed processing and to show the important role database technology may play in supporting such functionality of workflow management. These include a powerful process management environment using the principles of the Problem Structuring Methodology (PSM), which it created as a generalization of workflow ideas and incorporated transactional notions such as spheres of isolation, atomicity, and persistence and a transactional engine enforcing these “quality guarantees” based on the nested and multi-level models. It also includes a tool kit providing externalized database functionality enabling physical database design over heterogeneous data repositories. 相似文献
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