Regular physical activity reduces the risk of developing
cardiovascular decease, diabetes, obesity, osteoporosis, some
cancers, and other chronic conditions [15]. Public health
goal standards recommend adults to participate in at least
30 minutes of moderate-intensity physical activity on 5 or
more days a week [16]. However, less than 50% of the adult
population meets these standards in many industrialized
countries [1, 15]. Thus finding the effective population-based
intervention strategies to propagate the physical activity is
a key challenge.