Demographic trends project increasing numbers of older people to engage in exercise programs and sports. Sustained participation depends on both perceived health outcomes and avoidance of debilitating injuries. This review explores the potential benefits of physiologically based warm-up strategies to alleviate some key age-related decreases in the biomechanical capacity for skilled sport moveme...

new concepts have formed in transition of traditional urban planning concept that their essence refers to sociology and even psychology and so has made urban planning interdisciplinary concept, could be titled social capital and sense of place and participation. in fact places have two aspects, material and immaterial and can form emotional feeling among its residents. these feeling which led t...

BACKGROUND Participation in a sports group is key for the prevention of incident functional disability. Little is known about the correlates of older adults' participation in sports groups, although this could assist with the development of effective health strategies. The purpose of this study was to identify the demographic and biological, psychosocial, behavioral, social and cultural, and en...

Many people expect the Internet to change American politics – most likely in the direction of increasing direct citizen participation and forcing government officials to respond more quickly to voters’ concerns. An initiative petition with these objectives is currently circulating in California that would authorize use of electronic signatures over the Internet to qualify candidates, initiative...