Objective.: We evaluate the 6-month efficacy of Keep Active Minnesota, a phone- and mail-based physical activity maintenance intervention designed for use with adults age 50 to 70 years who have increased their physical activity within the past year. Method.: Participants (N = 1049) recruited in 2004 and 2005 from one large managed-care organization in Minnesota were randomly assigned to either treatment (N = 523) or usual care (N = 526) with physical activity assessed using the Community Healthy Activities Model Program for Seniors questionnaire, and expressed as kcal/week expenditures. Results.: Total physical activity at baseline was similar for treatment and usual care participants (p < 0.44) as was moderate/vigorous physical activity (p < 0.21). Maintenance of physical activity was higher among treatment participants whose mean 6-month change in total kcal/week energy expenditure was - 91, compared to - 683 for usual care participants (p < 0.002). Mean 6-month change in kcal/week expenditure in moderate or vigorous activities was - 49 for treatment participants, compared to - 612 for usual care participants (p < 0.001). Conclusions.: This phone- and mail-based physical activity maintenance intervention is efficacious at maintaining physical activity at 6 months.
|Original language||English (US)|
|Number of pages||9|
|State||Published - Feb 2008|
Bibliographical noteFunding Information:
This study was supported by a grant from the National Institute on Aging (R01 AG023410). The project was initiated and analyzed by the study investigators. For her capable project management during the study startup period we thank Kirsten Hase. We would also like to thank Karen Speicher, Jessica Boerboom, Colleen Flattum, and Stephanie Williams for their invaluable contributions as telephone coaches and counselors on the study.
- Behavioral research
- Health maintenance organizations
- Intervention studies
- Motor activity
- Randomized controlled trial