Promoting Physical Activity Among The Over Fifties Using a Web Based Tailored Advice
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Abstract
Background: Regular physical activity (PA) reduces the risks of health problems like overweight, CVD, cancer and diabetes, disorders that become more prevalent in an ageing population. Currently, in the Netherlands almost 35% of all residents are aged over fifty, a percentage that will increase even more in the future. Stimulating PA is therefore of major relevance for this population.
Previously, the Active Plus project systematically developed two tailored PA interventions, delivered by written tailored letters: a basic tailored intervention (to raise awareness of lack of PA, and to stimulate initiation and maintenance of PA) and an intervention additionally targeting environmental factors (local possibilities and initiatives for PA). Both interventions have proven effective in changing PA behaviour.
Both existing Active Plus interventions are adjusted by extending the environmental components, and by developing an interactive web-based version of both interventions. The original print delivered advice is translated into a web-based advice because computerized tailoring offers significant more possibilities than print-delivered tailoring, more interactive applications (like Google Earth© and discussion groups), and the opportunity to use more multimedia components (e.g. PA options can be showed by video-animations, which should lead to better learning effects compared to static pictures). Furthermore, internet provides the option to deliver tailored feedback immediately after collecting the information, eliminating a time lag between moment of assessment and moment of feedback. Additionally, implementation costs for the web-based interventions are much less and require less intensive manual labour than print-delivered interventions.
Objective: The aim of the Active Plus project is to increase PA among people who are aged over fifty. During this project, the influence of adding environmental information to a tailored PA intervention, and the influence of the delivery channel of the intervention (web based or print delivered) will be studied. Furthermore, the feasibility, appreciation and the cost-effectiveness of the intervention will be studied.
Methods: The tailoring interventions will be evaluated in a clustered RCT (250 participants per condition). Each condition will be implemented in a different comparable region. There are four evaluation assessments using questionnaires: at the start (also the baseline data for the first and second tailored advice; October 2010), after three months (also the data for the third tailored advice), six and twelve months.
Cost-effectiveness ratios of the different intervention conditions will be computed separately for younger and older participants, and for high and low SES subgroups.
Results: Both existing Active Plus interventions are adjusted by extending the environment intervention components, and by developing a less expensive, more interactive web-based version of both interventions. This resulted in four tailored interventions: a basic print-delivered intervention, a basic web-based intervention, a print-delivered intervention with additional environmental information, and a web-based version with additional environmental information. Results of a pilot study will be presented.
Conclusion: The development of the Active Plus programme resulted in four theory- and evidence-based tailored PA interventions targeting people aged over fifty. The different intervention conditions are expected to have different cost-effectiveness ratios depending on the population (age, SES).
Previously, the Active Plus project systematically developed two tailored PA interventions, delivered by written tailored letters: a basic tailored intervention (to raise awareness of lack of PA, and to stimulate initiation and maintenance of PA) and an intervention additionally targeting environmental factors (local possibilities and initiatives for PA). Both interventions have proven effective in changing PA behaviour.
Both existing Active Plus interventions are adjusted by extending the environmental components, and by developing an interactive web-based version of both interventions. The original print delivered advice is translated into a web-based advice because computerized tailoring offers significant more possibilities than print-delivered tailoring, more interactive applications (like Google Earth© and discussion groups), and the opportunity to use more multimedia components (e.g. PA options can be showed by video-animations, which should lead to better learning effects compared to static pictures). Furthermore, internet provides the option to deliver tailored feedback immediately after collecting the information, eliminating a time lag between moment of assessment and moment of feedback. Additionally, implementation costs for the web-based interventions are much less and require less intensive manual labour than print-delivered interventions.
Objective: The aim of the Active Plus project is to increase PA among people who are aged over fifty. During this project, the influence of adding environmental information to a tailored PA intervention, and the influence of the delivery channel of the intervention (web based or print delivered) will be studied. Furthermore, the feasibility, appreciation and the cost-effectiveness of the intervention will be studied.
Methods: The tailoring interventions will be evaluated in a clustered RCT (250 participants per condition). Each condition will be implemented in a different comparable region. There are four evaluation assessments using questionnaires: at the start (also the baseline data for the first and second tailored advice; October 2010), after three months (also the data for the third tailored advice), six and twelve months.
Cost-effectiveness ratios of the different intervention conditions will be computed separately for younger and older participants, and for high and low SES subgroups.
Results: Both existing Active Plus interventions are adjusted by extending the environment intervention components, and by developing a less expensive, more interactive web-based version of both interventions. This resulted in four tailored interventions: a basic print-delivered intervention, a basic web-based intervention, a print-delivered intervention with additional environmental information, and a web-based version with additional environmental information. Results of a pilot study will be presented.
Conclusion: The development of the Active Plus programme resulted in four theory- and evidence-based tailored PA interventions targeting people aged over fifty. The different intervention conditions are expected to have different cost-effectiveness ratios depending on the population (age, SES).
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