adult obesity levels increasing almost universally. • Net-cost of healthcare and welfare for overweight and obese people in the UK is £2.47 billion per annum. • The use of activity tracking devices, as an intervention to decrease sedentary behaviour is well researched. • Many previous studies use relatively small samples.
a target (despite criticism, e.g. Tudor- Locke and Bassett 2004)1. • Large variation in Bounts data but many not achieving ‘enough’ steps. 1Tudor-Locke, C. and Bassett, D.R., 2004. How many steps/day are enough?. Sports medicine, 34(1), pp.1-8.
• Levels of physical activity peak in summer; energy expenditure decreases in winter. • In our sample? • Some evidence of seasonal difference and a ‘holiday period’ effect. Clocks go back Clocks go forward Holiday lull?
these data are different from the general population (i.e. findings reported in previous studies). • Bounts participants are self-selecting and likely motivated to be more active. • Encouraging people to use a rewards scheme/ track their activity levels can help increase activity levels and decrease risk.
clubs, etc.) in relation to user demographics and seasonal activity. • Monitor effect of partnerships and marketing (e.g. links with Liverpool City Council). • Investigation of activity spaces and obesogenic environments using GPS trace data.