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66<br />

Effects of Interventions In Healthcare Settings on Physical Activity or Cardiorespiratory Fitness<br />

Denise G Simons-Morton, MD, PhD; Karen J Calfas, PhD; Brian Oldenburg, PhD; Nicola W Burton (MPsych)<br />

American Journal of Preventive MedicineVolume 15, Issue 4 , Pages 413-430, November 1998<br />

ABSTRACT<br />

Introduction: This paper reviews studies of physical activity interventions in healthcare settings to determine effects on physical<br />

activity and/or fitness and characteristics of successful interventions. Methods: Studies testing interventions to promote<br />

physical activity in healthcare settings for primary prevention (patients without disease) and secondary prevention (patients with<br />

cardiovascular disease [CVD]) were identified by computerized search methods and reference lists of reviews and articles. Inclusion<br />

criteria included assignment to intervention and control groups, physical activity or cardiorespiratory fitness outcome<br />

measures, and, for the secondary prevention studies, measurement 12 or more months after randomization. The number of studies<br />

with statistically significant effects was determined overall as well as for studies testing interventions with various characteristics.<br />

Results: Twelve studies of primary prevention were identified, seven of which were randomized. Three of four<br />

randomized studies with short-term measurement (4 weeks to 3 months after randomization), and two of five randomized studies<br />

with long-term measurement (6 months after randomization) achieved significant effects on physical activity. Twenty-four<br />

randomized studies of CVD secondary prevention were identified; 13 achieved significant effects on activity and/or fitness at<br />

twelve or more months. Studies with measurement at two time points showed decaying effects over time, particularly if the<br />

intervention were discontinued. Successful interventions contained multiple contacts, behavioral approaches, supervised exercise,<br />

provision of equipment, and/or continuing intervention. Many studies had methodologic problems such as low followup<br />

rates. Conclusion: Interventions in healthcare settings can increase physical activity for both primary and secondary<br />

prevention. Long-term effects are more likely with continuing intervention and multiple intervention components such as supervised<br />

exercise, provision of equipment, and behavioral approaches. Recommendations for additional research are given.<br />

Developing a Framework For Assessment of the Environmental Determinants of<br />

Walking and Cycling<br />

Terri Pikora, Billie Giles-Corti, Fiona Bull, Konrad Jamrozik, Rob Donovan<br />

Social Science & Medicine Volume 56, Issue 8, April 2003, Pages 1693-1703<br />

ABSTRACT<br />

The focus for interventions and research on physical activity has moved away from vigorous activity to moderate-intensity activities,<br />

such as walking. In addition, a social ecological approach to physical activity research and practice is recommended.<br />

This approach considers the influence of the environment and policies on physical activity. Although there is limited empirical<br />

published evidence related to the features of the physical environment that influence physical activity, urban planning and<br />

transport agencies have developed policies and strategies that have the potential to influence whether people walk or cycle in<br />

their neighborhood. This paper presents the development of a framework of the potential environmental influences on walking<br />

and cycling based on published evidence and policy literature, interviews with experts and a Delphi study. The framework<br />

includes four features: functional, safety, aesthetic and destination; as well as the hypothesized factors that contribute to each<br />

of these features of the environment. In addition, the Delphi experts determined the perceived relative importance of these factors.<br />

Based on these factors, a data collection tool will be developed and the frameworks will be tested through the collection<br />

of environmental information on neighborhoods, where data on the walking and cycling patterns have been collected previously.<br />

Identifying the environmental factors that influence walking and cycling will allow the inclusion of a public health perspective<br />

as well as those of urban planning and transport in the design of built environments.<br />

Journal of <strong>Special</strong> <strong>Operations</strong> Medicine Volume 10, Edition 4 / <strong>Fall</strong> 10

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