TY - JOUR
T1 - A new approach to physical activity maintenance
T2 - Rationale, design, and baseline data from the Keep Active Minnesota trial
AU - Sherwood, Nancy E.
AU - Martinson, Brian C.
AU - Crain, A. Lauren
AU - Hayes, Marcia G.
AU - Pronk, Nicolaas P.
AU - O'Connor, Patrick J.
N1 - Funding Information:
This study was supported by a grant from the National Institute on Aging (R01 AG023410).
PY - 2008
Y1 - 2008
N2 - Background. Since many individuals who initiate physical activity programs are highly likely to return to a sedentary lifestyle, innovative strategies to efforts to increase the number of physically active older adults who successfully maintain beneficial levels of PA for a substantial length of time are needed. Methods/Design. The Keep Active Minnesota Trial is a randomized controlled trial of an interactive phone- and mail-based intervention to help 50-70 year old adults who have recently increased their physical activity level, maintain that activity level over a 24-month period in comparison to usual care. Baseline, 6, 12, and 24 month measurement occurred via phone surveys with kilocalories expended per week in total and moderate-to-vigorous physical activity (CHAMPS Questionnaire) as the primary outcome measures. Secondary outcomes include hypothesized mediators of physical activity change (e.g., physical activity enjoyment, self-efficacy, physical activity self-concept), body mass index, and depression. Seven day accelerometry data were collected on a sub-sample of participants at baseline and 24-month follow-up. Discussion. The Keep Active Minnesota study offers an innovative approach to the perennial problem of physical activity relapse; by focusing explicitly on physical activity maintenance, the intervention holds considerable promise for modifying the typical relapse curve. Moreover, if shown to be efficacious, the use of phone- and mail-based intervention delivery offers potential for widespread dissemination. Trial registration. ClinicalTrials.gov Identifier: NCT00283452.
AB - Background. Since many individuals who initiate physical activity programs are highly likely to return to a sedentary lifestyle, innovative strategies to efforts to increase the number of physically active older adults who successfully maintain beneficial levels of PA for a substantial length of time are needed. Methods/Design. The Keep Active Minnesota Trial is a randomized controlled trial of an interactive phone- and mail-based intervention to help 50-70 year old adults who have recently increased their physical activity level, maintain that activity level over a 24-month period in comparison to usual care. Baseline, 6, 12, and 24 month measurement occurred via phone surveys with kilocalories expended per week in total and moderate-to-vigorous physical activity (CHAMPS Questionnaire) as the primary outcome measures. Secondary outcomes include hypothesized mediators of physical activity change (e.g., physical activity enjoyment, self-efficacy, physical activity self-concept), body mass index, and depression. Seven day accelerometry data were collected on a sub-sample of participants at baseline and 24-month follow-up. Discussion. The Keep Active Minnesota study offers an innovative approach to the perennial problem of physical activity relapse; by focusing explicitly on physical activity maintenance, the intervention holds considerable promise for modifying the typical relapse curve. Moreover, if shown to be efficacious, the use of phone- and mail-based intervention delivery offers potential for widespread dissemination. Trial registration. ClinicalTrials.gov Identifier: NCT00283452.
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U2 - 10.1186/1471-2318-8-17
DO - 10.1186/1471-2318-8-17
M3 - Article
C2 - 18655709
AN - SCOPUS:51649098582
SN - 1471-2318
VL - 8
JO - BMC Geriatrics
JF - BMC Geriatrics
M1 - 17
ER -